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Thaynes, USA

FormationThaynes
Member(s)Portneuf
Ross Fork
Age:251 - 247 Ma
Early Triassic
IntervalSpathian
Lithologypackstone, wackestone, "limestone", "carbonate", "mixed carbonate-siliciclastic", siltstone/"limestone", grainstone/siltstone, "shale", siltstone, sandstone, mudstone, marl
Number of Collections241
Number of Occurrences922

Recorded Sample Locations

LocationRegionStratigraphic Name
T-2: TCoconino County, Arizona, USAThaynes
T-1: TSalt Lake Co., Utah, USAThaynes
T-4: TWasatch Co., Utah, USAThaynes
T-5: TFremont Co., Idaho, USAThaynes
T-6: TBeaverhead Co., Montana, USAThaynes
T-7: TBonneville Co., Idaho, USAThaynes
T-9: TLincoln Co., Wyoming, USAThaynes
Wood CanyonCaribou Co., Idaho, USAThaynes
Paris CanyonBear Lake Co., Idaho, USAThaynes
Bear LakeBear Lake Co., Idaho, USAThaynes
AMNH B6956Wasatch Co., Utah, USAThaynes
AMNH B7850Lincoln Co., Wyoming, USAThaynes
AMNH B7854Lincoln Co., Wyoming, USAThaynes
AMNH B8251Bonneville Co., Idaho, USAThaynes
AMNH B8834Beaverhead Co., Montana, USAThaynes
AMNH B873Salt Lake Co., Utah, USAThaynes
AMNH B8828Bonneville Co., Idaho, USAThaynes
AMNH B7861Salt Lake Co., Utah, USAThaynes
AMNH B8836White Pine Co., Nevada, USAThaynes
AMNH Locality B72219Elko Co., Nevada, USAThaynes
AMNH B9075Elko Co., Nevada, USAThaynes
Fall CreekAdams Co., Idaho, USAThaynes
Cascade SpringsWasatch Co., Utah, USAThaynes
Crittenden SpringsElko Co., Nevada, USAThaynes
Palomino RidgeElko Co., Nevada, USAThaynes
Montello CanyonElko Co., Nevada, USAThaynes
Spanish Fork CanyonUtah Co., Utah, USAThaynes
Crittenden SpringsElko Co., Nevada, USAThaynes
Preuss CreekCaribou Co., Idaho, USAThaynes
Bear LakeBear Lake Co., Idaho, USAThaynes
Georgetown-Nounan RoadBear Lake Co., Idaho, USAThaynes
AMNH B7858Bonneville Co., Idaho, USAThaynes
AMNH B8840Morgan Co., Utah, USAThaynes
AMNH3112Elko Co., Nevada, USAThaynes
AMNH315Salt Lake Co., Utah, USAThaynes
AMNH319AWasatch Co., Utah, USAThaynes
Confusion Range CR-AMillard Co., Utah, USAThaynes
Hot Springs ridgeBear Lake Co., Idaho, USAThaynes
Diamond Fork CreekUtah Co., Utah, USAThaynes
Thaynes RidgeSalt Lake Co., Utah, USAThaynes
Fort DouglasSalt Lake Co., Utah, USAThaynes
32-Mile Spring OutcropWhite Pine Co., Nevada, USAThaynes
Crittenden SpringsElko Co., Nevada, USAThaynes
Swift Creek CanyonLincoln Co., Wyoming, USAThaynes
Hogback MountainMadison Co., Montana, USAThaynes
Hammond CreekBear Lake Co., Idaho, USAThaynes
Fort DouglasSalt Lake Co., Utah, USAThaynes
Mahogany HillsSummit Co., Utah, USAThaynes
USGS 7877 greenCaribou Co., Idaho, USAThaynes
USGS 7306i greenLincoln Co., Wyoming, USAThaynes
USGS 7406 greenBonneville Co., Idaho, USAThaynes - Portneuf
USGS 7485 greenBonneville Co., Idaho, USAThaynes
USGS 7631 greenBear Lake Co., Idaho, USAThaynes
USGS 7813 greenBingham Co., Idaho, USAThaynes
USGS 7878 greenCaribou Co., Idaho, USAThaynes
USGS 7879 greenBingham Co., Idaho, USAThaynes
Cowboy PassMillard Co., Utah, USAThaynes
Cowboy Pass JGX-M109Millard Co., Utah, USAThaynes
JJ8-75Bear Lake Co., Idaho, USAThaynes
JJ1-78Bear Lake Co., Idaho, USAThaynes
JJ1-77Bear Lake Co., Idaho, USAThaynes
JJ2-77Bear Lake Co., Idaho, USAThaynes
JJ16-11Bear Lake Co., Idaho, USAThaynes
JJ6-75Bear Lake Co., Idaho, USAThaynes
JJ7-75Bear Lake Co., Idaho, USAThaynes
JJ9-75Bear Lake Co., Idaho, USAThaynes
JJ1-82Bear Lake Co., Idaho, USAThaynes
JJ5-75Bear Lake Co., Idaho, USAThaynes
JJ23-00Bear Lake Co., Idaho, USAThaynes
Hot Springs JGX-HS4Bear Lake Co., Idaho, USAThaynes
Hammond Creek JGX-BETA-HCBear Lake Co., Idaho, USAThaynes
Hammond Creek JGX-ALPHA-HCBear Lake Co., Idaho, USAThaynes
Hammond Creek JGX-HC30Bear Lake Co., Idaho, USAThaynes
Humboldt Range JGX-NHR-2360APershing Co., Nevada, USAThaynes
Humboldt Range JGX-NHR-2360BPershing Co., Nevada, USAThaynes
Humboldt Range JGX-NHR-2823APershing Co., Nevada, USAThaynes
USGS 1271-PCBingham Co., Idaho, USAThaynes - Portneuf
USGS 1274-PCBingham Co., Idaho, USAThaynes - Portneuf
USGS 1284-PCBingham Co., Idaho, USAThaynes - Portneuf
USGS 1291-PCBingham Co., Idaho, USAThaynes - Portneuf
USGS 1304a-PCBingham Co., Idaho, USAThaynes
USGS 1315-PCBingham Co., Idaho, USAThaynes
USGS 1336-PCCaribou Co., Idaho, USAThaynes - Ross Fork
USGS 3769 greenLincoln Co., Wyoming, USAThaynes
USGS 5013Bear Lake Co., Idaho, USAThaynes
USGS 7390 greenBonneville Co., Idaho, USAThaynes
USGS 7395 greenBonneville Co., Idaho, USAThaynes
USGS 7435 greenBear Lake Co., Idaho, USAThaynes
USGS 7444 greenLincoln Co., Wyoming, USAThaynes
USGS 7470 greenLincoln Co., Wyoming, USAThaynes
USGS 7478 greenRich Co., Utah, USAThaynes
USGS 7825 greenCaribou Co., Idaho, USAThaynes
USGS 7835 greenFremont Co., Idaho, USAThaynes
USGS 823-PCCaribou Co., Idaho, USAThaynes
USGS 826-PCCaribou Co., Idaho, USAThaynes
USGS M-853Caribou Co., Idaho, USAThaynes - Portneuf
USGS 982Bear Lake Co., Idaho, USAThaynes
Little Water CanyonBeaverhead Co., Montana, USAThaynes
Paris CanyonFremont Co., Idaho, USAThaynes
USNM 9344Caribou Co., Idaho, USAThaynes
Aspen Range Caribou Co., Idaho, USAThaynes
Reservoir Mountain Caribou Co., Idaho, USAThaynes
Hammond Creek JGX-YHCBear Lake Co., Idaho, USAThaynes
JJ4-76Bear Lake Co., Idaho, USAThaynes
JJ11-75Bear Lake Co., Idaho, USAThaynes
Fort Hall Indian ReservationBannock Co., Idaho, USAThaynes
Bluff immediately west of Bear RiverBear Lake Co., Idaho, USAThaynes
Paris CanyonBear Lake Co., Idaho, USAThaynes
USGS 990eMorgan Co., Utah, USAThaynes
Summit Spring PassWhite Pine Co., Nevada, USAThaynes
USGS M-108Millard Co., Utah, USAThaynes
JJ6-75Bear Lake Co., Idaho, USAThaynes
JJ8-75Bear Lake Co., Idaho, USAThaynes
JJ16-75Bear Lake Co., Idaho, USAThaynes
JJ10-10Bear Lake Co., Idaho, USAThaynes
JJ1-81Bear Lake Co., Idaho, USAThaynes
DV2-202Millard Co., Utah, USAThaynes
MIA1Beaver Co., Utah, USAThaynes
1205-baseTeton Co., Idaho, USAThaynes
Columbites bedsBear Lake Co., Idaho, USAThaynes

Associated Units

Stratigraphic NameAgeLithologyOccurrence Records
Aspen Shale101 - 93.9 Ma
Late Cretaceous
mudstone, tuff, siltstone, "shale"44
Bear River113 - 101 Ma
Early Cretaceous
sandstone/"shale"3
Bighorn Dolomite458 - 443 Ma
Paleozoic
dolomite1
Darby393 - 359 Ma
Devonian
limestone/breccia1
Dinwoody252 - 247 Ma
Phanerozoic
packstone, "limestone", "shale", "mixed carbonate-siliciclastic", sandstone, siltstone, mudstone, "siliciclastic", "limestone"/"shale"275
Frontier89.3 - 66.0 Ma
Late Cretaceous
sandstone, claystone, mudstone, "siliciclastic", conglomerate, "limestone"101
Gallatin Limestone501 - 485 Ma
Cambrian
limestone/"shale"9
Lodgepole Limestone359 - 323 Ma
Paleozoic
lime mudstone/"limestone", "limestone"/siltstone, "limestone"115
Mission Canyon Limestone359 - 323 Ma
Paleozoic
limestone6
Park City - Franson260 - 254 Ma
Permian
lime mudstone/grainstone, "limestone", "carbonate", "shale"253
Phosphoria - Meade Peak272 - 269 Ma
Permian
limestone, "shale", "siliciclastic", mudstone238
Phosphoria - Retort260 - 252 Ma
Permian
shale, "limestone", mudstone, sandstone24
Thaynes - Portneuf251 - 247 Ma
Early Triassic
limestone8
Thaynes - Ross Fork251 - 247 Ma
Early Triassic
limestone2
Twin Creek Limestone - B174 - 145 Ma
Jurassic
limestone6
Twin Creek Limestone - C174 - 145 Ma
Jurassic
limestone3
Twin Creek Limestone - E174 - 145 Ma
Jurassic
limestone2
Twin Creek Limestone - F174 - 145 Ma
Jurassic
limestone9
Wells318 - 307 Ma
Carboniferous
limestone4
Woodside252 - 251 Ma
Phanerozoic
mixed carbonate-siliciclastic, "limestone", "shale"4
Younger Conglomerate5.33 - 2.59 Ma
Cenozoic
conglomerate/sandstone3
Thaynes251 - 247 Ma
Early Triassic
mudstone, marl, "limestone", siltstone, grainstone, lime mudstone, "shale"180
Thaynes - Thaynes251 - 247 Ma
Early Triassic
limestone1

Recorded Fossils

Accepted NameHierarchyAge
Asteriacites lumbricalis
species
Asteriacitidae : Asteriacites : Asteriacites lumbricalis251.3 - 247.2 Ma
Early Triassic
Meekoceras mushbachanum
species
Animalia : Mollusca : Cephalopoda : Ceratitida : Prionitidae : Meekoceras : Meekoceras mushbachanum251.3 - 247.2 Ma
Early Triassic
Litogaster turnbullensis
species
Animalia : Arthropoda : Malacostraca : Decapoda : Litogastroidae : Litogaster : Litogaster turnbullensis251.3 - 247.2 Ma
Early Triassic
Lingularia sp.
genus
Animalia : Brachiopoda : Lingulata : Lingulida : Lingulidae : Lingularia251.3 - 247.2 Ma
Early Triassic
Lingularia borealis
species
Animalia : Brachiopoda : Lingulata : Lingulida : Lingulidae : Lingularia : Lingularia borealis251.3 - 247.2 Ma
Early Triassic
Piarorhynchella triassica
species
Animalia : Brachiopoda : Rhynchonellata : Rhynchonellida : Norellidae : Piarorhynchella : Piarorhynchella triassica251.3 - 247.2 Ma
Early Triassic
Rhynchonella sp.
genus
Animalia : Brachiopoda : Rhynchonellata : Rhynchonellida : Rhynchonellidae : Rhynchonella251.3 - 247.2 Ma
Early Triassic
Lepismatina mansfieldi
species
Animalia : Brachiopoda : Rhynchonellata : Spiriferinida : Lepismatinidae : Lepismatina : Lepismatina mansfieldi251.3 - 247.2 Ma
Early Triassic
Spiriferina roundyi
species
Animalia : Brachiopoda : Rhynchonellata : Spiriferinida : Spiriferinidae : Spiriferina : Spiriferina roundyi251.2 - 247.2 Ma
Early Triassic
Terebratulida
order
Animalia : Brachiopoda : Rhynchonellata : Terebratulida251.3 - 247.2 Ma
Early Triassic
Rhaetina incurvirostra
species
Animalia : Brachiopoda : Rhynchonellata : Terebratulida : Angustothyrididae : Rhaetina : Rhaetina incurvirostra251.3 - 247.2 Ma
Early Triassic
Protogusarella smithi
species
Animalia : Brachiopoda : Rhynchonellata : Terebratulida : Gusarellidae : Protogusarella : Protogusarella smithi251.3 - 247.2 Ma
Early Triassic
Obnixia sp.
genus
Animalia : Brachiopoda : Rhynchonellata : Terebratulida : Notothyrididae : Obnixia251.3 - 247.2 Ma
Early Triassic
Obnixia thaynesiana
species
Animalia : Brachiopoda : Rhynchonellata : Terebratulida : Notothyrididae : Obnixia : Obnixia thaynesiana251.3 - 247.2 Ma
Early Triassic
Vex sp.
genus
Animalia : Brachiopoda : Rhynchonellata : Terebratulida : Terebratulidae : Vex251.3 - 247.2 Ma
Early Triassic
Vex semisimplex
species
Animalia : Brachiopoda : Rhynchonellata : Terebratulida : Terebratulidae : Vex : Vex semisimplex251.3 - 247.2 Ma
Early Triassic
Periallus woodsidensis
species
Animalia : Brachiopoda : Rhynchonellata : Terebratulida : Zeilleriidae : Periallus : Periallus woodsidensis251.3 - 247.2 Ma
Early Triassic
Portneufia episulcata
species
Animalia : Brachiopoda : Rhynchonellata : Terebratulida : Zugmayeriidae : Portneufia : Portneufia episulcata251.3 - 247.2 Ma
Early Triassic
Saurichthys (Lepidosaurichthys) elongatus
species
Animalia : Chordata : Actinopteri : Saurichthyiformes : Saurichthyidae : Saurichthys : Saurichthys (Lepidosaurichthys) elongatus251.3 - 247.2 Ma
Early Triassic
Actinopterygii
class
Animalia : Chordata : Actinopterygii251.3 - 247.2 Ma
Early Triassic
Chondrichthyes
class
Animalia : Chordata : Chondrichthyes251.3 - 247.2 Ma
Early Triassic
Pyknotylacanthus spathianus
species
Animalia : Chordata : Chondrichthyes : Ctenacanthiformes : Pyknotylacanthus : Pyknotylacanthus spathianus251.3 - 247.2 Ma
Early Triassic
Nemacanthus elegans
species
Animalia : Chordata : Chondrichthyes : Synechodontiformes : Palaeospinacidae : Nemacanthus : Nemacanthus elegans251.3 - 247.2 Ma
Early Triassic
Coelacanthimorpha
class
Animalia : Chordata : Coelacanthimorpha251.3 - 247.2 Ma
Early Triassic
Platyvillosus sp.
genus
Animalia : Chordata : Conodonta : Conodontophorida : Platyvillosus251.3 - 247.2 Ma
Early Triassic
Novispathodus triangularis
species
Animalia : Chordata : Conodonta : Ozarkodinida : Gondolellidae : Novispathodus : Novispathodus triangularis251.3 - 247.2 Ma
Early Triassic
Triassospathodus homeri
species
Animalia : Chordata : Conodonta : Ozarkodinida : Gondolellidae : Triassospathodus : Triassospathodus homeri251.3 - 247.2 Ma
Early Triassic
Gondolella jubata
species
Animalia : Chordata : Conodonta : Ozarkodinida : Gondolella : Gondolella jubata251.3 - 247.2 Ma
Early Triassic
Cymbospondylus sp.
genus
Animalia : Chordata : Reptilia : Ichthyosauria : Cymbospondylidae : Cymbospondylus251.3 - 247.2 Ma
Early Triassic
Holocrinus sp.
genus
Animalia : Echinodermata : Crinoidea : Isocrinida : Holocrinidae : Holocrinus251.3 - 247.2 Ma
Early Triassic
Holocrinus smithi
species
Animalia : Echinodermata : Crinoidea : Holocrinida : Holocrinus : Holocrinus smithi251.3 - 247.2 Ma
Early Triassic
Miocidaris sp.
genus
Animalia : Echinodermata : Echinoidea : Cidaroida : Miocidaridae : Miocidaris251.3 - 247.2 Ma
Early Triassic
Ophiuroidea
class
Animalia : Echinodermata : Ophiuroidea251.3 - 247.2 Ma
Early Triassic
Aspidura idahoensis
species
Animalia : Echinodermata : Ophiuroidea : Ophiurida : Ophiuridae : Aspiduriella : Aspidura idahoensis251.3 - 247.2 Ma
Early Triassic
Bivalvia
class
Animalia : Mollusca : Bivalvia251.3 - 247.2 Ma
Early Triassic
Heteroconchia
infraclass
Animalia : Mollusca : Bivalvia : Heteroconchia251.3 - 247.2 Ma
Early Triassic
Permophorus sp.
genus
Animalia : Mollusca : Bivalvia : Venerida : Kalenteridae : Permophorus251.3 - 247.2 Ma
Early Triassic
Permophorus triassicus
species
Animalia : Mollusca : Bivalvia : Venerida : Kalenteridae : Permophorus : Permophorus triassicus251.3 - 247.2 Ma
Early Triassic
Myalina sp.
genus
Animalia : Mollusca : Bivalvia : Ostreida : Bakevelliidae : Myalina251.3 - 247.2 Ma
Early Triassic
Myalina (Myalinella) sp.
subgenus
Animalia : Mollusca : Bivalvia : Myalinida : Myalinidae : Myalina : Myalina (Myalinella)251.3 - 247.2 Ma
Early Triassic
Promyalina sp.
genus
Animalia : Mollusca : Bivalvia : Myalinida : Myalinidae : Promyalina251.3 - 247.2 Ma
Early Triassic
Promysidiella sp.
genus
Animalia : Mollusca : Bivalvia : Myalinida : Mysidiellidae : Promysidiella251.3 - 247.2 Ma
Early Triassic
Austrotindaria canalensis
species
Animalia : Mollusca : Bivalvia : Nuculanida : Neilonellidae : Austrotindaria : Austrotindaria canalensis251.2 - 247.2 Ma
Early Triassic
Bakevellia sp.
genus
Animalia : Mollusca : Bivalvia : Ostreida : Bakevelliidae : Bakevellia251.3 - 247.2 Ma
Early Triassic
Bakevellia silberlingi
species
Animalia : Mollusca : Bivalvia : Ostreida : Bakevelliidae : Bakevellia : Bakevellia silberlingi251.3 - 247.2 Ma
Early Triassic
Gervillia sp.
genus
Animalia : Mollusca : Bivalvia : Ostreida : Bakevelliidae : Gervillia251.3 - 247.2 Ma
Early Triassic
Confusionella loczyi
species
Animalia : Mollusca : Bivalvia : Ostreida : Pteriidae : Confusionella : Confusionella loczyi251.2 - 247.2 Ma
Early Triassic
Pectinoidea
superfamily
Animalia : Mollusca : Bivalvia : Pectinida : Pectinoidea251.3 - 247.2 Ma
Early Triassic
Aviculopecten sp.
genus
Animalia : Mollusca : Bivalvia : Myalinida : Myalinidae : Aviculopecten252.17 - 247.2 Ma
Phanerozoic
Aviculopecten altus
species
Animalia : Mollusca : Bivalvia : Myalinida : Myalinidae : Aviculopecten : Aviculopecten altus251.2 - 247.2 Ma
Early Triassic
Aviculopecten idahoensis
species
Animalia : Mollusca : Bivalvia : Myalinida : Myalinidae : Aviculopecten : Aviculopecten idahoensis251.3 - 247.2 Ma
Early Triassic
Aviculopecten pealei
species
Animalia : Mollusca : Bivalvia : Myalinida : Myalinidae : Aviculopecten : Aviculopecten pealei251.2 - 247.2 Ma
Early Triassic
Crittendenia kummeli
species
Animalia : Mollusca : Bivalvia : Pectinida : Deltopectinidae : Crittendenia : Crittendenia kummeli251.3 - 247.2 Ma
Early Triassic
Entolioides utahensis
species
Animalia : Mollusca : Bivalvia : Pectinida : Entoliidae : Entolioides : Entolioides utahensis251.2 - 247.2 Ma
Early Triassic
Eumorphotis sp.
genus
Animalia : Mollusca : Bivalvia : Pectinida : Etheripectinidae : Eumorphotis251.3 - 247.2 Ma
Early Triassic
? no name ?
251.3 - 247.2 Ma
Early Triassic
Eumorphotis multiformis
species
Animalia : Mollusca : Bivalvia : Pectinida : Heteropectinidae : Eumorphotis : Eumorphotis multiformis251.3 - 247.2 Ma
Early Triassic
Leptochondria sp.
genus
Animalia : Mollusca : Bivalvia : Pectinida : Leptochondriidae : Leptochondria251.3 - 247.2 Ma
Early Triassic
Leptochondria curtocardinalis
species
Animalia : Mollusca : Bivalvia : Pectinida : Hunanopectinidae : Leptochondria : Leptochondria curtocardinalis251.2 - 247.2 Ma
Early Triassic
Leptochondria occidanea
species
Animalia : Mollusca : Bivalvia : Pectinida : Hunanopectinidae : Leptochondria : Leptochondria occidanea251.3 - 247.2 Ma
Early Triassic
Leptochondria xijinwulanensis
species
Animalia : Mollusca : Bivalvia : Pectinida : Leptochondriidae : Leptochondria : Leptochondria xijinwulanensis251.3 - 247.2 Ma
Early Triassic
Eumicrotis sp.
genus
Animalia : Mollusca : Bivalvia : Pectinida : Pseudomonotidae : Eumicrotis251.3 - 247.2 Ma
Early Triassic
Pseudomonotis sp.
genus
Animalia : Mollusca : Bivalvia : Pectinida : Pseudomonotidae : Pseudomonotis251.3 - 247.2 Ma
Early Triassic
Claraia sp.
genus
Animalia : Mollusca : Bivalvia : Pectinida : Pterinopectinidae : Claraia251.3 - 247.2 Ma
Early Triassic
Claraia extrema
species
Animalia : Mollusca : Bivalvia : Pectinida : Pterinopectinidae : Claraia : Claraia extrema251.3 - 247.2 Ma
Early Triassic
Claraia stachei
species
Animalia : Mollusca : Bivalvia : Pectinida : Pterinopectinidae : Claraia : Claraia stachei251.3 - 247.2 Ma
Early Triassic
Pleuromya haydeniana
species
Animalia : Mollusca : Bivalvia : Myida : Pleuromyidae : Pleuromya : Pleuromya haydeniana251.2 - 247.2 Ma
Early Triassic
Trigoniacea
superfamily
Animalia : Mollusca : Bivalvia : Trigoniida : Trigoniacea251.3 - 247.2 Ma
Early Triassic
Elegantinia sp.
genus
Animalia : Mollusca : Bivalvia : Trigoniida : Myophoriidae : Elegantinia251.3 - 247.2 Ma
Early Triassic
Neoschizodus sp.
genus
Animalia : Mollusca : Bivalvia : Trigoniida : Myophoriidae : Neoschizodus251.3 - 247.2 Ma
Early Triassic
Neoschizodus thaynesianus
species
Animalia : Mollusca : Bivalvia : Trigoniida : Myophoriidae : Neoschizodus : Neoschizodus thaynesianus251.3 - 247.2 Ma
Early Triassic
Unionites sp.
genus
Animalia : Mollusca : Bivalvia : Trigoniida : Trigonodidae : Unionites251.3 - 247.2 Ma
Early Triassic
Ceratitida
order
Animalia : Mollusca : Cephalopoda : Ceratitida251.3 - 247.2 Ma
Early Triassic
Pseudacrochordiceras inyoense
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Acrochordiceratidae : Pseudacrochordiceras : Pseudacrochordiceras inyoense251.3 - 247.2 Ma
Early Triassic
Albanites sheldoni
species
Animalia : Mollusca : Cephalopoda : Ceratitida : Albanitidae : Albanites : Albanites sheldoni251.3 - 247.2 Ma
Early Triassic
Gaudemerites rectangularis
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Albanitidae : Gaudemerites : Gaudemerites rectangularis251.3 - 247.2 Ma
Early Triassic
Arcestes sp.
genus
Animalia : Mollusca : Cephalopoda : Ammonoidea : Arcestidae : Arcestes251.3 - 247.2 Ma
Early Triassic
Arctoceras sp.
genus
Animalia : Mollusca : Cephalopoda : Ammonoidea : Arctoceratidae : Arctoceras251.3 - 247.2 Ma
Early Triassic
Arctoceras tuberculatum
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Arctoceratidae : Arctoceras : Arctoceras tuberculatum251.3 - 247.2 Ma
Early Triassic
Churkites noblei
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Arctoceratidae : Churkites : Churkites noblei251.3 - 247.2 Ma
Early Triassic
Minersvillites farai
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Arctoceratidae : Minersvillites : Minersvillites farai251.3 - 247.2 Ma
Early Triassic
Submeekoceras mushbachanum
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Arctoceratidae : Submeekoceras : Submeekoceras mushbachanum251.3 - 247.2 Ma
Early Triassic
Aspenites acutus
species
Animalia : Mollusca : Cephalopoda : Ceratitida : Aspenitidae : Aspenites : Aspenites acutus251.3 - 247.2 Ma
Early Triassic
Pseudaspenites balinii
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Aspenitidae : Pseudaspenites : Pseudaspenites balinii251.3 - 247.2 Ma
Early Triassic
Kiparisovites ovalis
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Byrrangoceratidae : Kiparisovites : Kiparisovites ovalis251.3 - 247.2 Ma
Early Triassic
Columbites crassicostatus
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Columbitidae : Columbites : Columbites crassicostatus251.3 - 247.2 Ma
Early Triassic
Columbites dolnapaensis
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Columbitidae : Columbites : Columbites dolnapaensis251.3 - 247.2 Ma
Early Triassic
Columbites isabellae
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Columbitidae : Columbites : Columbites isabellae251.3 - 247.2 Ma
Early Triassic
Columbites parisianus
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Columbitidae : Columbites : Columbites parisianus251.3 - 247.2 Ma
Early Triassic
Glabercolumbites glaber
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Columbitidae : Glabercolumbites : Glabercolumbites glaber251.3 - 247.2 Ma
Early Triassic
Idahocolumbites cheneyi
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Columbitidae : Idahocolumbites : Idahocolumbites cheneyi251.3 - 247.2 Ma
Early Triassic
Marcouxia astakhovi
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Columbitidae : Marcouxia : Marcouxia astakhovi251.3 - 247.2 Ma
Early Triassic
Neocolumbites sp.
genus
Animalia : Mollusca : Cephalopoda : Ammonoidea : Columbitidae : Neocolumbites251.3 - 247.2 Ma
Early Triassic
Procolumbites karataucicus
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Columbitidae : Procolumbites : Procolumbites karataucicus251.3 - 247.2 Ma
Early Triassic
Pseudharpoceras sp.
genus
Animalia : Mollusca : Cephalopoda : Ammonoidea : Columbitidae : Pseudharpoceras251.3 - 247.2 Ma
Early Triassic
Rudolftruempyiceras sp.
genus
Animalia : Mollusca : Cephalopoda : Ceratitida : Columbitidae : Rudolftruempyiceras251.3 - 247.2 Ma
Early Triassic
Rudolftruempyiceras apostolicum
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Columbitidae : Rudolftruempyiceras : Rudolftruempyiceras apostolicum251.3 - 247.2 Ma
Early Triassic
Subcolumbites perrinismithi
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Columbitidae : Subcolumbites : Subcolumbites perrinismithi251.3 - 247.2 Ma
Early Triassic
Tardicolumbites tardicolumbus
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Columbitidae : Tardicolumbites : Tardicolumbites tardicolumbus251.3 - 247.2 Ma
Early Triassic
Yvesgalleticeras montpelierense
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Columbitidae : Yvesgalleticeras : Yvesgalleticeras montpelierense251.3 - 247.2 Ma
Early Triassic
Yvesgalleticeras raphaeli
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Columbitidae : Yvesgalleticeras : Yvesgalleticeras raphaeli251.3 - 247.2 Ma
Early Triassic
Dieneroceras sp.
genus
Animalia : Mollusca : Cephalopoda : Ammonoidea : Dieneroceratidae : Dieneroceras251.3 - 247.2 Ma
Early Triassic
Dieneroceras dieneri
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Dieneroceratidae : Dieneroceras : Dieneroceras dieneri251.3 - 247.2 Ma
Early Triassic
Dieneroceras spathi
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Dieneroceratidae : Dieneroceras : Dieneroceras spathi251.3 - 247.2 Ma
Early Triassic
Dieneroceras subquadratum
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Dieneroceratidae : Dieneroceras : Dieneroceras subquadratum251.3 - 247.2 Ma
Early Triassic
Wyomingites aplanatus
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Dieneroceratidae : Wyomingites : Wyomingites aplanatus251.3 - 247.2 Ma
Early Triassic
Wyomingites arnoldi
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Dieneroceratidae : Wyomingites : Wyomingites arnoldi251.3 - 247.2 Ma
Early Triassic
Wyomingites whiteanus
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Dieneroceratidae : Wyomingites : Wyomingites whiteanus251.3 - 247.2 Ma
Early Triassic
Cowboyiceras farwestense
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Dinaritidae : Cowboyiceras : Cowboyiceras farwestense251.3 - 247.2 Ma
Early Triassic
Dagnoceras sp.
genus
Animalia : Mollusca : Cephalopoda : Ammonoidea : Dinaritidae : Dagnoceras251.3 - 247.2 Ma
Early Triassic
Dagnoceras zappanense
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Dinaritidae : Dagnoceras : Dagnoceras zappanense251.3 - 247.2 Ma
Early Triassic
Stacheites concavus
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Dinaritidae : Stacheites : Stacheites concavus251.3 - 247.2 Ma
Early Triassic
Stacheites floweri
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Dinaritidae : Stacheites : Stacheites floweri251.3 - 247.2 Ma
Early Triassic
Stacheites prionoides
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Dinaritidae : Stacheites : Stacheites prionoides251.3 - 247.2 Ma
Early Triassic
Anaflemingites russelli
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Flemingitidae : Anaflemingites : Anaflemingites russelli251.3 - 247.2 Ma
Early Triassic
Anaflemingites silberlingi
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Flemingitidae : Anaflemingites : Anaflemingites silberlingi251.3 - 247.2 Ma
Early Triassic
Euflemingites cirratus
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Flemingitidae : Euflemingites : Euflemingites cirratus251.3 - 247.2 Ma
Early Triassic
Flemingites sp.
genus
Animalia : Mollusca : Cephalopoda : Ammonoidea : Flemingitidae : Flemingites251.3 - 247.2 Ma
Early Triassic
Clypites tenuis
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Hedenstroemiidae : Clypites : Clypites tenuis251.3 - 247.2 Ma
Early Triassic
Cordillerites angulatus
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Hedenstroemiidae : Cordillerites : Cordillerites angulatus251.3 - 247.2 Ma
Early Triassic
Hedenstroemia kossmati
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Hedenstroemiidae : Hedenstroemia : Hedenstroemia kossmati251.3 - 247.2 Ma
Early Triassic
Hedenstroemiidae
family
Animalia : Mollusca : Cephalopoda : Ammonoidea : Hedenstroemiidae251.3 - 247.2 Ma
Early Triassic
Pseudosageceras sp.
genus
Animalia : Mollusca : Cephalopoda : Ammonoidea : Hedenstroemiidae : Pseudosageceras251.3 - 247.2 Ma
Early Triassic
Pseudosageceras augustum
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Hedenstroemiidae : Pseudosageceras : Pseudosageceras augustum251.3 - 247.2 Ma
Early Triassic
Pseudosageceras multilobatum
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Hedenstroemiidae : Pseudosageceras : Pseudosageceras multilobatum251.3 - 247.2 Ma
Early Triassic
Hellenites elegans
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Hellenitidae : Hellenites : Hellenites elegans251.3 - 247.2 Ma
Early Triassic
Hellenites idahoense
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Hellenitidae : Hellenites : Hellenites idahoense251.3 - 247.2 Ma
Early Triassic
Deweveria crenulata
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Hemilecanitidae : Deweveria : Deweveria crenulata251.3 - 247.2 Ma
Early Triassic
Deweveria dudresnayi
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Hemilecanitidae : Deweveria : Deweveria dudresnayi251.3 - 247.2 Ma
Early Triassic
Hemilecanites fastigatus
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Hemilecanitidae : Hemilecanites : Hemilecanites fastigatus251.3 - 247.2 Ma
Early Triassic
Hemilecanites paradiscus
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Hemilecanitidae : Hemilecanites : Hemilecanites paradiscus251.3 - 247.2 Ma
Early Triassic
Inyoites beaverensis
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Inyoitidae : Inyoites : Inyoites beaverensis251.3 - 247.2 Ma
Early Triassic
Inyoites oweni
species
Animalia : Mollusca : Cephalopoda : Ceratitida : Inyoitidae : Inyoites : Inyoites oweni251.3 - 247.2 Ma
Early Triassic
Subvishnuites stokesi
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Inyoitidae : Subvishnuites : Subvishnuites stokesi251.3 - 247.2 Ma
Early Triassic
Hanielites sp.
genus
Animalia : Mollusca : Cephalopoda : Ammonoidea : Kashmiritidae : Hanielites251.3 - 247.2 Ma
Early Triassic
Kashmirites sp.
genus
Animalia : Mollusca : Cephalopoda : Ammonoidea : Kashmiritidae : Kashmirites251.3 - 247.2 Ma
Early Triassic
Kashmirites confusionensis
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Kashmiritidae : Kashmirites : Kashmirites confusionensis251.3 - 247.2 Ma
Early Triassic
Kashmirites stepheni
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Kashmiritidae : Kashmirites : Kashmirites stepheni251.3 - 247.2 Ma
Early Triassic
Kashmirites utahensis
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Kashmiritidae : Kashmirites : Kashmirites utahensis251.3 - 247.2 Ma
Early Triassic
Preflorianites toulai
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Kashmiritidae : Preflorianites : Preflorianites toulai251.3 - 247.2 Ma
Early Triassic
Metadagnoceras sp.
genus
Animalia : Mollusca : Cephalopoda : Ammonoidea : Metadagnoceras251.3 - 247.2 Ma
Early Triassic
Metadagnoceras pulchrum
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Metadagnoceras : Metadagnoceras pulchrum251.3 - 247.2 Ma
Early Triassic
Metadagnoceras unicum
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Metadagnoceras : Metadagnoceras unicum251.3 - 247.2 Ma
Early Triassic
Lanceolites bicarinatus
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Lanceolitidae : Lanceolites : Lanceolites bicarinatus251.3 - 247.2 Ma
Early Triassic
Lanceolites compactus
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Lanceolitidae : Lanceolites : Lanceolites compactus251.3 - 247.2 Ma
Early Triassic
Silberlingeria sp.
genus
Animalia : Mollusca : Cephalopoda : Ammonoidea : Longobarditidae : Silberlingeria251.3 - 247.2 Ma
Early Triassic
Silberlingeria bearlakensis
species
Animalia : Mollusca : Cephalopoda : Ceratitida : Longobarditidae : Silberlingeria : Silberlingeria bearlakensis251.3 - 247.2 Ma
Early Triassic
Silberlingeria coronata
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Longobarditidae : Silberlingeria : Silberlingeria coronata251.3 - 247.2 Ma
Early Triassic
Silberlingeria rubyae
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Longobarditidae : Silberlingeria : Silberlingeria rubyae251.3 - 247.2 Ma
Early Triassic
Silberlingeria sarahjanae
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Longobarditidae : Silberlingeria : Silberlingeria sarahjanae251.3 - 247.2 Ma
Early Triassic
Subhungarites sp.
genus
Animalia : Mollusca : Cephalopoda : Ammonoidea : Longobarditidae : Subhungarites251.3 - 247.2 Ma
Early Triassic
Subhungarites yatesi
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Longobarditidae : Subhungarites : Subhungarites yatesi251.3 - 247.2 Ma
Early Triassic
Juvenites sp.
genus
Animalia : Mollusca : Cephalopoda : Ammonoidea : Melagathiceratidae : Juvenites251.3 - 247.2 Ma
Early Triassic
Juvenites dieneri
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Melagathiceratidae : Juvenites : Juvenites dieneri251.3 - 247.2 Ma
Early Triassic
Juvenites kraffti
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Melagathiceratidae : Juvenites : Juvenites kraffti251.3 - 247.2 Ma
Early Triassic
Juvenites septentrionalis
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Melagathiceratidae : Juvenites : Juvenites septentrionalis251.3 - 247.2 Ma
Early Triassic
Juvenites thermarum
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Melagathiceratidae : Juvenites : Juvenites thermarum251.3 - 247.2 Ma
Early Triassic
Owenites carpenteri
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Melagathiceratidae : Owenites : Owenites carpenteri251.3 - 247.2 Ma
Early Triassic
Owenites koeneni
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Melagathiceratidae : Owenites : Owenites koeneni251.3 - 247.2 Ma
Early Triassic
Paranannites aspenensis
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Melagathiceratidae : Paranannites : Paranannites aspenensis251.3 - 247.2 Ma
Early Triassic
Paranannites mulleri
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Melagathiceratidae : Paranannites : Paranannites mulleri251.3 - 247.2 Ma
Early Triassic
Paranannites slossi
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Melagathiceratidae : Paranannites : Paranannites slossi251.3 - 247.2 Ma
Early Triassic
Bajarunia sp.
genus
Animalia : Mollusca : Cephalopoda : Ammonoidea : Prionitidae : Bajarunia251.3 - 247.2 Ma
Early Triassic
Bajarunia confusionensis
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Prionitidae : Bajarunia : Bajarunia confusionensis251.3 - 247.2 Ma
Early Triassic
Bajarunia pilata
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Prionitidae : Bajarunia : Bajarunia pilata251.3 - 247.2 Ma
Early Triassic
Carteria hotspringensis
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Carteria : Carteria hotspringensis251.3 - 247.2 Ma
Early Triassic
Eschericeratites lytoceratoides
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Xenoceltitidae : Eschericeratites : Eschericeratites lytoceratoides251.3 - 247.2 Ma
Early Triassic
Jeanbesseiceras jacksoni
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Xenoceltitidae : Jeanbesseiceras : Jeanbesseiceras jacksoni251.3 - 247.2 Ma
Early Triassic
Tapponnierites tenuicostatus
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Xenoceltitidae : Tapponnierites : Tapponnierites tenuicostatus251.3 - 247.2 Ma
Early Triassic
Ceccaisculitoides elegans
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Paragoceratidae : Ceccaisculitoides : Ceccaisculitoides elegans251.3 - 247.2 Ma
Early Triassic
Ceccaisculitoides hammondi
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Paragoceratidae : Ceccaisculitoides : Ceccaisculitoides hammondi251.3 - 247.2 Ma
Early Triassic
Fengshanites americanus
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Paragoceratidae : Fengshanites : Fengshanites americanus251.3 - 247.2 Ma
Early Triassic
Isculitoides originis
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Paragoceratidae : Isculitoides : Isculitoides originis251.3 - 247.2 Ma
Early Triassic
Paragoceras sp.
genus
Animalia : Mollusca : Cephalopoda : Ammonoidea : Paragoceratidae : Paragoceras251.3 - 247.2 Ma
Early Triassic
Paragoceras malayanus
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Paragoceratidae : Paragoceras : Paragoceras malayanus251.3 - 247.2 Ma
Early Triassic
Paragoceras timorensis
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Paragoceratidae : Paragoceras : Paragoceras timorensis251.3 - 247.2 Ma
Early Triassic
Galfettites lucasi
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Paranoritidae : Galfettites : Galfettites lucasi251.3 - 247.2 Ma
Early Triassic
Radioceras evolvens
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Paranoritidae : Radioceras : Radioceras evolvens251.3 - 247.2 Ma
Early Triassic
Vercherites undulatus
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Paranoritidae : Vercherites : Vercherites undulatus251.3 - 247.2 Ma
Early Triassic
Acutomeekoceras rieberi
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Prionitidae : Acutomeekoceras : Acutomeekoceras rieberi251.3 - 247.2 Ma
Early Triassic
Anasibirites angulosus
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Prionitidae : Anasibirites : Anasibirites angulosus251.3 - 247.2 Ma
Early Triassic
Anasibirites kingianus
species
Animalia : Mollusca : Cephalopoda : Ceratitida : Prionitidae : Anasibirites : Anasibirites kingianus251.3 - 247.2 Ma
Early Triassic
Arctoprionites sp.
genus
Animalia : Mollusca : Cephalopoda : Ammonoidea : Prionitidae : Arctoprionites251.3 - 247.2 Ma
Early Triassic
Hemiprionites roberti
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Prionitidae : Hemiprionites : Hemiprionites roberti251.3 - 247.2 Ma
Early Triassic
Hemiprionites typus
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Prionitidae : Hemiprionites : Hemiprionites typus251.3 - 247.2 Ma
Early Triassic
Meekoceras sp.
genus
Animalia : Mollusca : Cephalopoda : Ammonoidea : Prionitidae : Meekoceras251.3 - 247.2 Ma
Early Triassic
Meekoceras gracilitatis
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Prionitidae : Meekoceras : Meekoceras gracilitatis251.3 - 247.2 Ma
Early Triassic
Meekoceras haydeni
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Prionitidae : Meekoceras : Meekoceras haydeni251.3 - 247.2 Ma
Early Triassic
Meekoceras millardense
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Prionitidae : Meekoceras : Meekoceras millardense251.3 - 247.2 Ma
Early Triassic
Meekoceras olivieri
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Prionitidae : Meekoceras : Meekoceras olivieri251.3 - 247.2 Ma
Early Triassic
Prionitidae
family
Animalia : Mollusca : Cephalopoda : Ceratitida : Prionitidae251.3 - 247.2 Ma
Early Triassic
Wasatchites sp.
genus
Animalia : Mollusca : Cephalopoda : Ammonoidea : Prionitidae : Wasatchites251.3 - 247.2 Ma
Early Triassic
Wasatchites perrini
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Prionitidae : Wasatchites : Wasatchites perrini251.3 - 247.2 Ma
Early Triassic
Procarnites sp.
genus
Animalia : Mollusca : Cephalopoda : Ammonoidea : Procarnitidae : Procarnites251.3 - 247.2 Ma
Early Triassic
Arctomeekoceras popovi
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Proptychitidae : Arctomeekoceras : Arctomeekoceras popovi251.3 - 247.2 Ma
Early Triassic
Arctomeekoceras tardum
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Proptychitidae : Arctomeekoceras : Arctomeekoceras tardum251.3 - 247.2 Ma
Early Triassic
Dalmatites sp.
genus
Animalia : Mollusca : Cephalopoda : Meekoceratidae : Dalmatites251.3 - 247.2 Ma
Early Triassic
Guodunites hooveri
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Proptychitidae : Guodunites : Guodunites hooveri251.3 - 247.2 Ma
Early Triassic
Guodunites monneti
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Proptychitidae : Guodunites : Guodunites monneti251.3 - 247.2 Ma
Early Triassic
Pseudaspidites silberlingi
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Proptychitidae : Pseudaspidites : Pseudaspidites silberlingi251.3 - 247.2 Ma
Early Triassic
Pseudaspidites wheeleri
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Proptychitidae : Pseudaspidites : Pseudaspidites wheeleri251.3 - 247.2 Ma
Early Triassic
Wailiceras aemulus
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Proptychitidae : Wailiceras : Wailiceras aemulus251.3 - 247.2 Ma
Early Triassic
Xiaoqiaoceras americanum
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Proptychitidae : Xiaoqiaoceras : Xiaoqiaoceras americanum251.3 - 247.2 Ma
Early Triassic
Kazakhstanites dolnapensis
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Sibiritidae : Kazakhstanites : Kazakhstanites dolnapensis251.3 - 247.2 Ma
Early Triassic
Praesibirites sp.
genus
Animalia : Mollusca : Cephalopoda : Ammonoidea : Sibiritidae : Praesibirites251.3 - 247.2 Ma
Early Triassic
Prohungarites sp.
genus
Animalia : Mollusca : Cephalopoda : Ammonoidea : Sibiritidae : Prohungarites251.3 - 247.2 Ma
Early Triassic
Prohungarites beyrichitoides
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Sibiritidae : Prohungarites : Prohungarites beyrichitoides251.3 - 247.2 Ma
Early Triassic
Prohungarites gutstadti
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Sibiritidae : Prohungarites : Prohungarites gutstadti251.3 - 247.2 Ma
Early Triassic
Prohungarites lenticularis
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Sibiritidae : Prohungarites : Prohungarites lenticularis251.3 - 247.2 Ma
Early Triassic
Prohungarites mckelvei
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Sibiritidae : Prohungarites : Prohungarites mckelvei251.3 - 247.2 Ma
Early Triassic
Prohungarites submckelvei
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Sibiritidae : Prohungarites : Prohungarites submckelvei251.3 - 247.2 Ma
Early Triassic
Pseudosvalbardiceras humboldtense
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Sibiritidae : Pseudosvalbardiceras : Pseudosvalbardiceras humboldtense251.3 - 247.2 Ma
Early Triassic
Sibirites sp.
genus
Animalia : Mollusca : Cephalopoda : Ammonoidea : Sibiritidae : Sibirites251.3 - 247.2 Ma
Early Triassic
Sibirites carinatus
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Sibiritidae : Sibirites : Sibirites carinatus251.3 - 247.2 Ma
Early Triassic
Svalbardiceras freboldi
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Sibiritidae : Svalbardiceras : Svalbardiceras freboldi251.3 - 247.2 Ma
Early Triassic
Svalbardiceras spitzbergensis
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Sibiritidae : Svalbardiceras : Svalbardiceras spitzbergensis251.3 - 247.2 Ma
Early Triassic
Svalbardiceras sulcatum
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Sibiritidae : Svalbardiceras : Svalbardiceras sulcatum251.3 - 247.2 Ma
Early Triassic
Tirolites sp.
genus
Animalia : Mollusca : Cephalopoda : Ammonoidea : Tirolites251.3 - 247.2 Ma
Early Triassic
Tirolites carniolicus
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Tirolites : Tirolites carniolicus251.3 - 247.2 Ma
Early Triassic
Tirolites smithi
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Tirolites : Tirolites smithi251.3 - 247.2 Ma
Early Triassic
Metussuria sp.
genus
Animalia : Mollusca : Cephalopoda : Ammonoidea : Ussuriidae : Metussuria251.3 - 247.2 Ma
Early Triassic
Metussuria waageni
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Ussuriidae : Metussuria : Metussuria waageni251.3 - 247.2 Ma
Early Triassic
Parussuria compressa
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Ussuriidae : Parussuria : Parussuria compressa251.3 - 247.2 Ma
Early Triassic
Ussuria sp.
genus
Animalia : Mollusca : Cephalopoda : Ammonoidea : Ussuriidae : Ussuria251.3 - 247.2 Ma
Early Triassic
Glyptophiceras sp.
genus
Animalia : Mollusca : Cephalopoda : Ammonoidea : Xenoceltitidae : Glyptophiceras251.3 - 247.2 Ma
Early Triassic
Xenoceltites sp.
genus
Animalia : Mollusca : Cephalopoda : Ammonoidea : Xenoceltitidae : Xenoceltites251.3 - 247.2 Ma
Early Triassic
Xenoceltites cordilleranus
species
Animalia : Mollusca : Cephalopoda : Ceratitida : Xenoceltitidae : Xenoceltites : Xenoceltites cordilleranus251.3 - 247.2 Ma
Early Triassic
Xenoceltites crenulatus
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Xenoceltitidae : Xenoceltites : Xenoceltites crenulatus251.3 - 247.2 Ma
Early Triassic
Xenoceltites spencei
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Xenoceltitidae : Xenoceltites : Xenoceltites spencei251.3 - 247.2 Ma
Early Triassic
Xenoceltites youngi
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Xenoceltitidae : Xenoceltites : Xenoceltites youngi251.3 - 247.2 Ma
Early Triassic
Xenoceltitidae
family
Animalia : Mollusca : Cephalopoda : Ammonoidea : Xenoceltitidae251.3 - 247.2 Ma
Early Triassic
Xenodiscus sp.
genus
Animalia : Mollusca : Cephalopoda : Ammonoidea : Xenodiscidae : Xenodiscus251.3 - 247.2 Ma
Early Triassic
Nautiloidea
superfamily
Animalia : Mollusca : Cephalopoda : Nautilida : Nautiloidea251.3 - 247.2 Ma
Early Triassic
Enoploceras sp.
genus
Animalia : Mollusca : Cephalopoda : Nautilida : Tainoceratidae : Enoploceras251.3 - 247.2 Ma
Early Triassic
Phaedrysmocheilus idahoensis
species
Animalia : Mollusca : Cephalopoda : Nautilida : Tainoceratidae : Phaedrysmocheilus : Phaedrysmocheilus idahoensis251.3 - 247.2 Ma
Early Triassic
Pleuronautilus sp.
genus
Animalia : Mollusca : Cephalopoda : Nautilida : Tainoceratidae : Pleuronautilus251.3 - 247.2 Ma
Early Triassic
Orthoceras sp.
genus
Animalia : Mollusca : Cephalopoda : Orthoceratidae : Orthoceras251.3 - 247.2 Ma
Early Triassic
Trematoceras sp.
genus
Animalia : Mollusca : Cephalopoda : Orthoceratidae : Trematoceras251.3 - 247.2 Ma
Early Triassic
Nordophiceratoides adriani
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Nordophiceratidae : Nordophiceratoides : Nordophiceratoides adriani251.3 - 247.2 Ma
Early Triassic
Nordophiceratoides bartolinae
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Nordophiceratidae : Nordophiceratoides : Nordophiceratoides bartolinae251.3 - 247.2 Ma
Early Triassic
Nordophiceratoides catherinae
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Nordophiceratidae : Nordophiceratoides : Nordophiceratoides catherinae251.3 - 247.2 Ma
Early Triassic
Nordophiceratoides gracilis
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Nordophiceratidae : Nordophiceratoides : Nordophiceratoides gracilis251.3 - 247.2 Ma
Early Triassic
Palaeophyllites sp.
genus
Animalia : Mollusca : Cephalopoda : Ammonoidea : Palaeophyllitidae : Palaeophyllites251.3 - 247.2 Ma
Early Triassic
Coscaites crassus
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Ussuritidae : Coscaites : Coscaites crassus251.3 - 247.2 Ma
Early Triassic
Ussurites hosei
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Ussuritidae : Ussurites : Ussurites hosei251.3 - 247.2 Ma
Early Triassic
Ussurites mansfeldi
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Ussuritidae : Ussurites : Ussurites mansfeldi251.3 - 247.2 Ma
Early Triassic
Ussurites mansfieldi
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Ussuritidae : Ussurites : Ussurites mansfieldi251.3 - 247.2 Ma
Early Triassic
Ussurites submansfeldi
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Ussuritidae : Ussurites : Ussurites submansfeldi251.3 - 247.2 Ma
Early Triassic
Strobeus batteni
species
Animalia : Mollusca : Gastropoda : Soleniscidae : Strobeus : Strobeus batteni251.3 - 247.2 Ma
Early Triassic
Polygyrina sp.
genus
Animalia : Mollusca : Gastropoda : Goniospiridae : Polygyrina251.3 - 247.2 Ma
Early Triassic
Laubopsis sp.
genus
Animalia : Mollusca : Gastropoda : Cycloneritida : Tricolnaticopsidae : Laubopsis251.3 - 247.2 Ma
Early Triassic
Chartronella sp.
genus
Animalia : Mollusca : Gastropoda : Paraturbinidae : Chartronella251.3 - 247.2 Ma
Early Triassic
Coelostylina sp.
genus
Animalia : Mollusca : Gastropoda : Coelostylinidae : Coelostylina251.3 - 247.2 Ma
Early Triassic
Omphaloptychia sp.
genus
Animalia : Mollusca : Gastropoda : Coelostylinidae : Omphaloptychia251.3 - 247.2 Ma
Early Triassic
Worthenia windowblindensis
species
Animalia : Mollusca : Gastropoda : Lophospiridae : Worthenia : Worthenia windowblindensis251.3 - 247.2 Ma
Early Triassic
Cypellospongia fimbriartis
species
Animalia : Porifera : Hexactinellida : Lyssacinosida : Euplectellidae : Cypellospongia : Cypellospongia fimbriartis251.3 - 247.2 Ma
Early Triassic

References

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Pisera A., Rigby J. K., et al (1996) Lower Triassic hexactinellid sponges from the Confusion Range, western Utah, Brigham Young University Geology Studies 41, 139-148
Boyd D. W., Nice D. E., et al (1999) Silt injection as a mode of fossilization: a Triassic example, Palaios 14, 545-554
Newell N. D., Boyd D.W. (1999) A new Lower Triassic Permophorus from the central Rocky Mountains, American Museum Novitates 3263, 1-565
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Romano C., Kogan I., et al (2012) Saurichthys and other fossil fishes from the late Smithian (Early Triassic) of Bear Lake County (Idaho, USA), with a discussion of saurichthyid palaeogeography and evolution, Bulletin of Geosciences 87, 543-570
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Brayard A., Bylund K. G., et al (2013) Smithian ammonoid faunas from Utah: implications for Early Triassic biostratigraphy, correlation and basinal paleogeography, Swiss Journal of Palaeontology 132, 141-219
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Data courtesy of: PBDB: The Paleobiology Database, Creative Commons CC-BY licenced. , GBIF: the Global Biodiversity Information Facility, various licences, iDigBio, various licences, and EOL: The Encyclopedia of Life (Open Data Public Domain). Because fossils are made of minerals too!
 
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