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Ninemile, USA

Formation	Ninemile
Age:	479 - 468 Ma Ordovician
Interval	Tulean
Lithology	limestone/"shale", "limestone", "shale", siltstone/"limestone", siltstone, "shale"/packstone
Number of Collections	49
Number of Occurrences	184

Recorded Sample Locations

Location	Region	Stratigraphic Name
D 290 CO	Nye County, Nevada, USA	Ninemile
D 843 CO	Nye County, Nevada, USA	Ninemile
D 985 CO	Nye County, Nevada, USA	Ninemile
D1373 CO	Lincoln County, Nevada, USA	Ninemile
D1559 CO	Lincoln County, Nevada, USA	Ninemile
D4263 CO	Inyo County, California, USA	Ninemile
D1009 CO	Inyo County, California, USA	Ninemile
D 718 CO	Nye County, Nevada, USA	Ninemile
bed 199	Clark County, Nevada, USA	Ninemile
section 24	Eureka County, Nevada, USA	Ninemile
Narrows Section	Eureka County, Nevada, USA	Ninemile

Associated Units

Stratigraphic Name	Age	Lithology	Occurrence Records
Antelope Valley - Middle	472 - 458 Ma Ordovician	limestone	5
Antelope Valley Limestone	467 - 458 Ma Ordovician	lime mudstone, "limestone"/"shale", siltstone, wackestone, "limestone", dolomite	406
Antelope Valley Limestone - Barnes Unit 12	472 - 468 Ma Ordovician	limestone	3
Antelope Valley Limestone - Lower	472 - 468 Ma Ordovician	limestone	37
Antelope Valley Limestone - Middle	472 - 458 Ma Ordovician	limestone	93
Antelope Valley Limestone - Paiute Ridge	472 - 468 Ma Ordovician	dolomite, "limestone"	9
Antelope Valley Limestone - Ranger Mountains	472 - 458 Ma Ordovician	limestone	40
Antelope Valley Limestone - Unit H	472 - 458 Ma Ordovician	limestone	2
Antelope Valley Limestone - Unit I	472 - 458 Ma Ordovician	limestone	23
Antelope Valley Limestone - Upper	472 - 458 Ma Ordovician	limestone, dolomite	80
Antelope Valley Ls	472 - 458 Ma Ordovician	siltstone, "limestone", dolomite	280
Antelope Valley Ls - Middle	472 - 458 Ma Ordovician	limestone	17
Antelope Valley Ls - Upper	488 - 472 Ma Paleozoic	limestone	12
Copenhagen - A	458 - 450 Ma Late/Upper Ordovician	shale, sandstone	9
Copenhagen - B	458 - 450 Ma Late/Upper Ordovician	limestone	110
Copenhagen - C	458 - 450 Ma Late/Upper Ordovician	siltstone	107
Ely Springs Dolomite	461 - 450 Ma Ordovician	dolomite	10
Eureka Quartzite - Unit I	472 - 458 Ma Ordovician	limestone	10
Goodwin	479 - 472 Ma Early/Lower Ordovician	limestone/conglomerate, dolomite, "limestone", siltstone	91
Goodwin Limestone	485 - 472 Ma Paleozoic	limestone, "limestone"/conglomerate	37
Ninemile Shale	472 - 466 Ma Ordovician	mudstone/lime mudstone, "shale"/"limestone", "shale", "shale"/packstone, "limestone"/"shale", "limestone"	100
Ninemile/Lower Antelope Valley	479 - 468 Ma Ordovician	shale	2
Pogonip - Copenhagen	466 - 461 Ma Middle Ordovician	limestone	1
Pogonip - Goodwin	485 - 472 Ma Paleozoic	limestone	2

Recorded Fossils

Accepted Name	Type	Hierarchy	Age
Ostracoda class	3	Animalia : Arthropoda : Ostracoda	478.6 - 468.1 Ma Ordovician
Trilobita class	3	Animalia : Arthropoda : Trilobita	478.6 - 471.8 Ma Early/Lower Ordovician
Geragnostus sp. genus	6	Animalia : Arthropoda : Trilobita : Agnostida : Metagnostidae : *Geragnostus*	485.4 - 471.8 Ma Paleozoic
Trinodus sp. genus	6	Animalia : Arthropoda : Trilobita : Agnostida : Metagnostidae : *Trinodus*	478.6 - 471.8 Ma Early/Lower Ordovician
Asaphida order	4	Animalia : Arthropoda : Trilobita : Asaphida	478.6 - 471.8 Ma Early/Lower Ordovician
Aulacoparia (Aulacoparia) venta species	7	Animalia : Arthropoda : Trilobita : Asaphida : Asaphidae : Aulacoparia : *Aulacoparia (Aulacoparia) venta*	485.4 - 471.8 Ma Paleozoic
Hunnebergia sp. genus	6	Animalia : Arthropoda : Trilobita : Asaphida : Asaphidae : *Hunnebergia*	485.4 - 471.8 Ma Paleozoic
Isoteloides sp. genus	6	Animalia : Arthropoda : Trilobita : Asaphida : Asaphidae : *Isoteloides*	485.4 - 471.8 Ma Paleozoic
Kirkella declevita species	7	Animalia : Arthropoda : Trilobita : Asaphida : Asaphidae : Ptyocephalus : *Kirkella declevita*	478.6 - 471.8 Ma Early/Lower Ordovician
Lachnostoma sp. genus	6	Animalia : Arthropoda : Trilobita : Asaphida : Asaphidae : *Lachnostoma*	478.6 - 471.8 Ma Early/Lower Ordovician
Lachnostoma latucelsum species	7	Animalia : Arthropoda : Trilobita : Asaphida : Asaphidae : Lachnostoma : *Lachnostoma latucelsum*	478.6 - 471.8 Ma Early/Lower Ordovician
Megalaspides sp. genus	6	Animalia : Arthropoda : Trilobita : Asaphida : Asaphidae : *Megalaspides*	478.6 - 471.8 Ma Early/Lower Ordovician
Megistaspis sp. genus	6	Animalia : Arthropoda : Trilobita : Asaphida : Asaphidae : *Megistaspis*	485.4 - 471.8 Ma Paleozoic
Megistaspis (Ekeraspis) floweri species	7	Animalia : Arthropoda : Trilobita : Asaphida : Asaphidae : Megistaspis : *Megistaspis (Ekeraspis) floweri*	485.4 - 471.8 Ma Paleozoic
Notopeltis orthometopa species	7	Animalia : Arthropoda : Trilobita : Asaphida : Asaphidae : Notopeltis : *Notopeltis orthometopa*	478.6 - 471.8 Ma Early/Lower Ordovician
Presbynileus sp. genus	6	Animalia : Arthropoda : Trilobita : Asaphida : Asaphidae : *Presbynileus*	478.6 - 471.8 Ma Early/Lower Ordovician
Presbynileus ibexensis species	7	Animalia : Arthropoda : Trilobita : Asaphida : Asaphidae : Presbynileus : *Presbynileus ibexensis*	485.4 - 471.8 Ma Paleozoic
Protopresbynileus sp. genus	6	Animalia : Arthropoda : Trilobita : Asaphida : Asaphidae : *Protopresbynileus*	485.4 - 471.8 Ma Paleozoic
Ptyocephalus sp. genus	6	Animalia : Arthropoda : Trilobita : Asaphida : Asaphidae : *Ptyocephalus*	478.6 - 471.8 Ma Early/Lower Ordovician
Ptyocephalus accliva species	7	Animalia : Arthropoda : Trilobita : Asaphida : Asaphidae : Ptyocephalus : *Ptyocephalus accliva*	478.6 - 471.8 Ma Early/Lower Ordovician
Ptyocephalus vigilans species	7	Animalia : Arthropoda : Trilobita : Asaphida : Asaphidae : Ptychocephalus : *Ptyocephalus vigilans*	478.6 - 471.8 Ma Early/Lower Ordovician
Trigonocerca sp. genus	6	Animalia : Arthropoda : Trilobita : Asaphida : Asaphidae : *Trigonocerca*	485.4 - 471.8 Ma Paleozoic
Trigonocerca typica species	7	Animalia : Arthropoda : Trilobita : Asaphida : Asaphidae : Trigonocerca : *Trigonocerca typica*	478.6 - 471.8 Ma Early/Lower Ordovician
Ampyx sp. genus	6	Animalia : Arthropoda : Trilobita : Asaphida : Raphiophoridae : *Ampyx*	478.6 - 471.8 Ma Early/Lower Ordovician
Eorobergia sp. genus	6	Animalia : Arthropoda : Trilobita : Asaphida : Remopleurididae : *Eorobergia*	485.4 - 471.8 Ma Paleozoic
Hystricuridae family	5	Animalia : Arthropoda : Trilobita : Aulacopleurida : Hystricuridae	488.3 - 471.8 Ma Paleozoic
Psalikilus sp. genus	6	Animalia : Arthropoda : Trilobita : Aulacopleurida : Hystricuridae : *Psalikilus*	478.6 - 471.8 Ma Early/Lower Ordovician
Psalikilus pikum species	7	Animalia : Arthropoda : Trilobita : Aulacopleurida : Hystricuridae : Psalikilus : *Psalikilus pikum*	478.6 - 471.8 Ma Early/Lower Ordovician
Diacanthaspis sp. genus	6	Animalia : Arthropoda : Trilobita : Lichida : Odontopleuridae : *Diacanthaspis*	478.6 - 471.8 Ma Early/Lower Ordovician
Pilekia sp. genus	6	Animalia : Arthropoda : Trilobita : Phacopida : Pilekiidae : *Pilekia*	478.6 - 471.8 Ma Early/Lower Ordovician
Hintzeia sp. genus	6	Animalia : Arthropoda : Trilobita : Phacopida : Pliomeridae : *Hintzeia*	478.6 - 471.8 Ma Early/Lower Ordovician
Leiostrototropis sp. genus	6	Animalia : Arthropoda : Trilobita : Phacopida : *Leiostrototropis*	478.6 - 471.8 Ma Early/Lower Ordovician
Pliomeridae family	5	Animalia : Arthropoda : Trilobita : Phacopida : Pliomeridae	485.4 - 471.8 Ma Paleozoic
Protopliomerops sp. genus	6	Animalia : Arthropoda : Trilobita : Phacopida : Pliomeridae : *Protopliomerops*	478.6 - 471.8 Ma Early/Lower Ordovician
Pseudocybele sp. genus	6	Animalia : Arthropoda : Trilobita : Phacopida : Pliomeridae : *Pseudocybele*	485.4 - 471.8 Ma Paleozoic
Pseudocybele altinasuta species	7	Animalia : Arthropoda : Trilobita : Phacopida : Pliomeridae : Pseudocybele : *Pseudocybele altinasuta*	478.6 - 471.8 Ma Early/Lower Ordovician
Pseudocybele lemurei species	7	Animalia : Arthropoda : Trilobita : Phacopida : Pliomeridae : Pseudocybele : *Pseudocybele lemurei*	478.6 - 471.8 Ma Early/Lower Ordovician
Pseudomera sp. genus	6	Animalia : Arthropoda : Trilobita : Phacopida : Pliomeridae : *Pseudomera*	478.6 - 471.8 Ma Early/Lower Ordovician
Acidiphorus sp. genus	6	Animalia : Arthropoda : Trilobita : Proetida : Bathyuridae : *Acidiphorus*	478.6 - 471.8 Ma Early/Lower Ordovician
Bolbocephalus sp. genus	6	Animalia : Arthropoda : Trilobita : Proetida : Bathyuridae : *Bolbocephalus*	478.6 - 471.8 Ma Early/Lower Ordovician
Jeffersonia sp. genus	6	Animalia : Arthropoda : Trilobita : Proetida : Bathyuridae : *Jeffersonia*	478.6 - 471.8 Ma Early/Lower Ordovician
Licnocephala sp. genus	6	Animalia : Arthropoda : Trilobita : Proetida : Bathyuridae : *Licnocephala*	478.6 - 471.8 Ma Early/Lower Ordovician
Peltabellia sp. genus	6	Animalia : Arthropoda : Trilobita : Proetida : Bathyuridae : *Peltabellia*	478.6 - 471.8 Ma Early/Lower Ordovician
Dimeropygiella sp. genus	6	Animalia : Arthropoda : Trilobita : Proetida : Dimeropygidae : *Dimeropygiella*	478.6 - 471.8 Ma Early/Lower Ordovician
Dimeropygiella caudanodosa species	7	Animalia : Arthropoda : Trilobita : Proetida : Dimeropygidae : Dimeropygiella : *Dimeropygiella caudanodosa*	478.6 - 471.8 Ma Early/Lower Ordovician
Dimeropygiella ovata species	7	Animalia : Arthropoda : Trilobita : Proetida : Dimeropygidae : Dimeropygiella : *Dimeropygiella ovata*	478.6 - 471.8 Ma Early/Lower Ordovician
Ischyrotoma sp. genus	6	Animalia : Arthropoda : Trilobita : Proetida : Dimeropygidae : *Ischyrotoma*	478.6 - 471.8 Ma Early/Lower Ordovician
Carolinites sp. genus	6	Animalia : Arthropoda : Trilobita : Ptychopariida : Komaspididae : *Carolinites*	478.6 - 471.8 Ma Early/Lower Ordovician
Carolinites genacinaca species	7	Animalia : Arthropoda : Trilobita : Proetida : Telephinidae : Carolinites : *Carolinites genacinaca*	478.6 - 471.8 Ma Early/Lower Ordovician
Goniophrys sp. genus	6	Animalia : Arthropoda : Trilobita : Ptychopariida : Komaspididae : *Goniophrys*	485.4 - 471.8 Ma Paleozoic
Shumardia sp. genus	6	Animalia : Arthropoda : Trilobita : Ptychopariida : Shumardiidae : *Shumardia*	485.4 - 471.8 Ma Paleozoic
Shumardia exopthalmus species	7	Animalia : Arthropoda : Trilobita : Ptychopariida : Shumardiidae : Shumardia : *Shumardia exopthalmus*	478.6 - 471.8 Ma Early/Lower Ordovician
Archaeorthis sp. genus	6	Animalia : Brachiopoda : Rhynchonellata : Orthida : Archaeorthidae : *Archaeorthis*	485.4 - 471.8 Ma Paleozoic
Apheoorthis sp. genus	6	Animalia : Brachiopoda : Rhynchonellata : Orthida : Eoorthidae : *Apheoorthis*	478.6 - 471.8 Ma Early/Lower Ordovician
Diparelasma sp. genus	6	Animalia : Brachiopoda : Rhynchonellata : Orthida : Finkelnburgiidae : *Diparelasma*	478.6 - 471.8 Ma Early/Lower Ordovician
Hesperonomia sp. genus	6	Animalia : Brachiopoda : Rhynchonellata : Orthida : Hesperonomiidae : *Hesperonomia*	478.6 - 471.8 Ma Early/Lower Ordovician
Hesperonomia planidorsalis species	7	Animalia : Brachiopoda : Rhynchonellata : Orthida : Hesperonomiidae : Hesperonomia : *Hesperonomia planidorsalis*	478.6 - 471.8 Ma Early/Lower Ordovician
Hesperonomiella sp. genus	6	Animalia : Brachiopoda : Rhynchonellata : Orthida : Hesperonomiidae : *Hesperonomiella*	478.6 - 471.8 Ma Early/Lower Ordovician
Orthambonites sp. genus	6	Animalia : Brachiopoda : Rhynchonellata : Orthida : Orthidae : *Orthambonites*	478.6 - 468.1 Ma Ordovician
Orthidiella sp. genus	6	Animalia : Brachiopoda : Rhynchonellata : Orthida : Orthidiellidae : *Orthidiella*	478.6 - 471.8 Ma Early/Lower Ordovician
Idiostrophia sp. genus	6	Animalia : Brachiopoda : Rhynchonellata : Pentamerida : Camerellidae : *Idiostrophia*	478.6 - 471.8 Ma Early/Lower Ordovician
Plectotrophia sp. genus	6	Animalia : Brachiopoda : Rhynchonellata : Pentamerida : Tetralobulidae : *Plectotrophia*	478.6 - 471.8 Ma Early/Lower Ordovician
Syntrophopsis sp. genus	6	Animalia : Brachiopoda : Rhynchonellata : Pentamerida : Tetralobulidae : *Syntrophopsis*	478.6 - 471.8 Ma Early/Lower Ordovician
Tritoechia sp. genus	6	Animalia : Brachiopoda : Strophomenata : Billingsellida : Polytoechiidae : *Tritoechia*	478.6 - 471.8 Ma Early/Lower Ordovician
Leptella sp. genus	6	Animalia : Brachiopoda : Strophomenata : Strophomenida : Taffiidae : *Leptella*	478.6 - 471.8 Ma Early/Lower Ordovician
Eukrinaster ibexensis species	7	Animalia : Echinodermata : Asteroidea : Eukrinasteridae : Eukrinaster : *Eukrinaster ibexensis*	478.6 - 471.8 Ma Early/Lower Ordovician
Porosublastus inexpectus species	7	Animalia : Echinodermata : Edrioasteroidea : Edrioasterida : Astrocystitidae : Porosublastus : *Porosublastus inexpectus*	478.6 - 471.8 Ma Early/Lower Ordovician
Pseudedriophus guensburgi species	7	Animalia : Echinodermata : Edrioasteroidea : Edrioasterida : Edrioasteridae : Pseudedriophus : *Pseudedriophus guensburgi*	478.6 - 471.8 Ma Early/Lower Ordovician
Eurekablastus ninemilensis species	7	Animalia : Echinodermata : Parablastoidea : Blastocystidae : Eurekablastus : *Eurekablastus ninemilensis*	478.6 - 471.8 Ma Early/Lower Ordovician
Didymograptus (Didymograptus) artus species	7	Animalia : Hemichordata : Graptolithina : Dichograptidae : Didymograptus : *Didymograptus (Didymograptus) artus*	478.6 - 471.8 Ma Early/Lower Ordovician
Curtoceras sp. genus	6	Animalia : Mollusca : Cephalopoda : Nautilida : Nautilidae : *Curtoceras*	485.4 - 471.8 Ma Paleozoic
Maclurites sp. genus	6	Animalia : Mollusca : Gastropoda : Maclureadae : *Maclurites*	478.6 - 471.8 Ma Early/Lower Ordovician

References

Ross, Jr. R. J., Longwell C. R. (1964) Middle and Lower Ordovician Formations in Southernmost Nevada and Adjacent California, United States Geological Survey Bulletin 1180-C, C1-C101 doi:10.3133/b1180C

Ross, Jr. R. J., Barnes H. B. (1967) Some Middle Ordovician Brachiopods and Trilobites from the Basin Ranges, Western United States, United States Geological Survey Professional Paper 523-D, D1-D4

Ross, Jr. R. J. (1970) Ordovician Brachiopods, Trilobites, and Stratigraphy in Eastern and Central Nevada, United States Geological Survey Professional Paper 639, 1-99

Ross, Jr. R. J. (1970) Ordovician brachiopods, trilobites, and stratigraphy in eastern and central Nevada, United States Geological Survey Professional Paper 639, 1-103

Blake D. B., Guensburg T. E., et al (2007) A new, phylogenetically significant Early Ordocivian asteroid (Echinodermata), Journal of Paleontology 81 6, 1257-1265 doi:10.1666/06-002.1

Sprinkle J., Sumrall C. D. (2008) New parablastoids from the western United States, The University of Kansas Paleontological Contributions 16, 1-14

Sprinkle J., Sumrall C. D. (2015) New edrioasterine and astrocystitid (Echinodermata: Edrioasteroidea) from the Ninemile Shale (Lower Ordovician), central Nevada, Journal of Paleontology 89 2, 346-352 doi:10.1017/jpa.2014.29

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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