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Cow Head - Shallow Bay - Downes Point, Canada

GroupCow Head
FormationShallow Bay
MemberDownes Point
Age:499 - 485 Ma
Cambrian
IntervalArcadian
Lithologyconglomerate, packstone/grainstone, grainstone/packstone, conglomerate/lime mudstone, packstone/wackestone, lime mudstone/packstone, "limestone"
Number of Collections57
Number of Occurrences230

Recorded Sample Locations

LocationRegionStratigraphic Name
WRI 602Newfoundland, Newfoundland and Labrador, CanadaCow Head - Shallow Bay - Downes Point
BPS 448Newfoundland, Newfoundland and Labrador, CanadaCow Head - Shallow Bay - Downes Point
CH 3CanadaCow Head - Shallow Bay - Downes Point
Kindle boulder #260La Haute-Gaspésie RCM, Gaspésie-Îles-de-la-Madeleine, Québec, CanadaCow Head - Shallow Bay - Downes Point
Hickey Cove HC 133Newfoundland, Newfoundland and Labrador, CanadaCow Head - Shallow Bay - Downes Point

Associated Units

Stratigraphic NameAgeLithologyOccurrence Records
Cow Head - Green Point - Broom Point485 - 478 Ma
Paleozoic
shale/conglomerate, grainstone/mudstone, "limestone", grainstone141
Cow Head - Shallow Bay485 - 478 Ma
Paleozoic
limestone26
Cow Head - Shallow Bay - Downes Point (lower)501 - 485 Ma
Cambrian
conglomerate, packstone/grainstone72
Cow Head - Shallow Bay - Factory Cove472 - 458 Ma
Ordovician
lime mudstone, "limestone", grainstone, "reef rocks"42
Cow Head - Shallow Bay - Tucker Cove499 - 485 Ma
Cambrian
grainstone/"shale"1
Cow Head - Shallow Bay - Tuckers Cove499 - 485 Ma
Cambrian
limestone225

Recorded Fossils

Accepted NameHierarchyAge
Acmarhachis kindlei
species
7Animalia : Arthropoda : Trilobita : Agnostida : Agnostidae : Acmarhachis : Acmarhachis kindlei501 - 485.4 Ma
Cambrian
Acmarhachis whittingtoni
species
7Animalia : Arthropoda : Trilobita : Agnostida : Agnostidae : Acmarhachis : Acmarhachis whittingtoni501 - 485.4 Ma
Cambrian
Agnostus (Homagnostus) obesus
species
7Animalia : Arthropoda : Trilobita : Agnostida : Agnostidae : Agnostus : Agnostus (Homagnostus) obesus501 - 485.4 Ma
Cambrian
Glyptagnostus reticulatus
species
7Animalia : Arthropoda : Trilobita : Agnostida : Agnostidae : Glyptagnostus : Glyptagnostus reticulatus501 - 485.4 Ma
Cambrian
Homagnostus sp.
genus
6Animalia : Arthropoda : Trilobita : Agnostida : Agnostidae : Homagnostus501 - 485.4 Ma
Cambrian
Homagnostus alaskensis
species
7Animalia : Arthropoda : Trilobita : Agnostida : Agnostidae : Homagnostus : Homagnostus alaskensis501 - 485.4 Ma
Cambrian
Innitagnostus sp.
genus
6Animalia : Arthropoda : Trilobita : Agnostida : Agnostidae : Innitagnostus501 - 485.4 Ma
Cambrian
Innitagnostus inexpectans
species
7Animalia : Arthropoda : Trilobita : Agnostida : Agnostidae : Innitagnostus : Innitagnostus inexpectans501 - 485.4 Ma
Cambrian
Kormagnostus sp.
genus
6Animalia : Arthropoda : Trilobita : Agnostida : Agnostidae : Kormagnostus501 - 485.4 Ma
Cambrian
Kormagnostus seclusus
species
7Animalia : Arthropoda : Trilobita : Agnostida : Agnostidae : Kormagnostus : Kormagnostus seclusus501 - 485.4 Ma
Cambrian
Baltagnostus sp.
genus
6Animalia : Arthropoda : Trilobita : Agnostida : Diplagnostidae : Baltagnostus513 - 501 Ma
Cambrian
Pseudagnostus sp.
genus
6Animalia : Arthropoda : Trilobita : Agnostida : Diplagnostidae : Pseudagnostus501 - 485.4 Ma
Cambrian
Pseudagnostus ampullatus
species
7Animalia : Arthropoda : Trilobita : Agnostida : Diplagnostidae : Pseudagnostus : Pseudagnostus ampullatus501 - 485.4 Ma
Cambrian
Pseudagnostus communis
species
7Animalia : Arthropoda : Trilobita : Agnostida : Diplagnostidae : Pseudagnostus : Pseudagnostus communis501 - 485.4 Ma
Cambrian
Pseudagnostus idalis
species
7Animalia : Arthropoda : Trilobita : Agnostida : Diplagnostidae : Pseudagnostus : Pseudagnostus idalis501 - 485.4 Ma
Cambrian
Pseudagnostus pseudocyclopyge
species
7Animalia : Arthropoda : Trilobita : Agnostida : Diplagnostidae : Pseudagnostus : Pseudagnostus pseudocyclopyge498.5 - 485.4 Ma
Cambrian
Megagnostus sp.
genus
6Animalia : Arthropoda : Trilobita : Agnostida : Megagnostus501 - 485.4 Ma
Cambrian
Peronopsis sp.
genus
6Animalia : Arthropoda : Trilobita : Agnostida : Peronopsidae : Peronopsis501 - 485.4 Ma
Cambrian
Peronopsis fallax
species
7Animalia : Arthropoda : Trilobita : Agnostida : Peronopsidae : Peronopsis : Peronopsis fallax513 - 501 Ma
Cambrian
Ptychagnostus sp.
genus
6Animalia : Arthropoda : Trilobita : Agnostida : Ptychagnostidae : Ptychagnostus513 - 501 Ma
Cambrian
Ptychagnostus (Ptychagnostus) fissus
species
7Animalia : Arthropoda : Trilobita : Agnostida : Ptychagnostidae : Ptychagnostus : Ptychagnostus (Ptychagnostus) fissus513 - 501 Ma
Cambrian
Ptychagnostus aculeatus
species
7Animalia : Arthropoda : Trilobita : Agnostida : Ptychagnostidae : Ptychagnostus : Ptychagnostus aculeatus501 - 485.4 Ma
Cambrian
Ptychagnostus atavus
species
7Animalia : Arthropoda : Trilobita : Agnostida : Ptychagnostidae : Ptychagnostus : Ptychagnostus atavus501 - 485.4 Ma
Cambrian
Ptychagnostus intermedius
species
7Animalia : Arthropoda : Trilobita : Agnostida : Ptychagnostidae : Ptychagnostus : Ptychagnostus intermedius513 - 501 Ma
Cambrian
Ptychagnostus seminula
species
7Animalia : Arthropoda : Trilobita : Agnostida : Ptychagnostidae : Ptychagnostus : Ptychagnostus seminula513 - 501 Ma
Cambrian
Tomagnostus sp.
genus
6Animalia : Arthropoda : Trilobita : Agnostida : Ptychagnostidae : Tomagnostus513 - 501 Ma
Cambrian
Triplagnostus gibbus
species
7Animalia : Arthropoda : Trilobita : Agnostida : Ptychagnostidae : Triplagnostus : Triplagnostus gibbus513 - 501 Ma
Cambrian
Hypagnostus parvifrons
species
7Animalia : Arthropoda : Trilobita : Agnostida : Spinagnostidae : Hypagnostus : Hypagnostus parvifrons513 - 501 Ma
Cambrian
Alokistocare sp.
genus
6Animalia : Arthropoda : Trilobita : Ptychopariida : Alokistocaridae : Alokistocare513 - 501 Ma
Cambrian
Chancia sp.
genus
6Animalia : Arthropoda : Trilobita : Ptychopariida : Alokistocaridae : Chancia513 - 501 Ma
Cambrian
Elrathia sp.
genus
6Animalia : Arthropoda : Trilobita : Ptychopariida : Alokistocaridae : Elrathia513 - 501 Ma
Cambrian
Bathyuriscidella sp.
genus
6Animalia : Arthropoda : Trilobita : Corynexochida : Dolichometopidae : Bathyuriscidella513 - 501 Ma
Cambrian
Bathyuriscus sp.
genus
6Animalia : Arthropoda : Trilobita : Corynexochida : Dorypygidae : Bathyuriscus513 - 501 Ma
Cambrian
Kootenia sp.
genus
6Animalia : Arthropoda : Trilobita : Corynexochida : Dorypygidae : Kootenia513 - 501 Ma
Cambrian
Ogygopsis sp.
genus
6Animalia : Arthropoda : Trilobita : Corynexochida : Ogygopsidae : Ogygopsis513 - 501 Ma
Cambrian
Olenoides sp.
genus
6Animalia : Arthropoda : Trilobita : Corynexochida : Dorypygidae : Olenoides513 - 501 Ma
Cambrian
Tonkinella sp.
genus
6Animalia : Arthropoda : Trilobita : Corynexochida : Oryctocephalidae : Tonkinella513 - 501 Ma
Cambrian
Parkaspis sp.
genus
6Animalia : Arthropoda : Trilobita : Corynexochida : Zacanthoididae : Parkaspis513 - 501 Ma
Cambrian
Zacanthoides sp.
genus
6Animalia : Arthropoda : Trilobita : Corynexochida : Zacanthoididae : Zacanthoides513 - 501 Ma
Cambrian
Pagetia sp.
genus
6Animalia : Arthropoda : Trilobita : Agnostida : Eodiscidae : Pagetia513 - 501 Ma
Cambrian
Loganopeltoides sp.
genus
6Animalia : Arthropoda : Trilobita : Harpetida : Harpididae : Loganopeltoides498.5 - 485.4 Ma
Cambrian
Orygmaspis sp.
genus
6Animalia : Arthropoda : Trilobita : Asaphida : Parabolinoididae : Orygmaspis498.5 - 485.4 Ma
Cambrian
Roksaspis sp.
genus
6Animalia : Arthropoda : Trilobita : Asaphida : Parabolinoididae : Roksaspis498.5 - 485.4 Ma
Cambrian
Elrathina sp.
genus
6Animalia : Arthropoda : Trilobita : Ptychopariida : Ptychopariidae : Elrathina513 - 501 Ma
Cambrian
Eoptychoparia sp.
genus
6Animalia : Arthropoda : Trilobita : Ptychopariida : Ptychopariidae : Eoptychoparia513 - 501 Ma
Cambrian
Onchocephalites sp.
genus
6Animalia : Arthropoda : Trilobita : Ptychopariida : Ptychopariidae : Onchocephalites513 - 501 Ma
Cambrian
Spencella sp.
genus
6Animalia : Arthropoda : Trilobita : Ptychopariida : Ptychopariidae : Spencella513 - 501 Ma
Cambrian
Dactylotreta sp.
genus
6Animalia : Brachiopoda : Lingulata : Acrotretida : Acrotretidae : Dactylotreta513 - 501 Ma
Cambrian
Linnarssonia sp.
genus
6Animalia : Brachiopoda : Lingulata : Acrotretida : Acrotretidae : Linnarssonia513 - 501 Ma
Cambrian
Neotreta sp.
genus
6Animalia : Brachiopoda : Lingulata : Acrotretida : Acrotretidae : Neotreta513 - 501 Ma
Cambrian
Picnotreta sp.
genus
6Animalia : Brachiopoda : Lingulata : Acrotretida : Acrotretidae : Picnotreta513 - 501 Ma
Cambrian
Picnotreta robusta
species
7Animalia : Brachiopoda : Lingulata : Acrotretida : Acrotretidae : Picnotreta : Picnotreta robusta513 - 501 Ma
Cambrian
Orbithele sp.
genus
6Animalia : Brachiopoda : Lingulata : Lingulida : Acrothelidae : Orbithele513 - 501 Ma
Cambrian
Micromitra sp.
genus
6Animalia : Brachiopoda : Paterinidae : Micromitra513 - 501 Ma
Cambrian

References

Young G. A., Ludvigsen R. (1989) Mid-Cambrian trilobites from the lowest part of the Cow Head Group, western Newfoundland, Geological Survey of Canada Bulletin 392, 1-28
Ludvigsen R., Westrop S. R., et al (1989) Sunwaptan (Upper Cambrian) trilobites of the Cow Head Group, western Newfoundland, Canada, Palaeontographica Canadiana 6, 1-175
Westrop S. R., Ludvigsen R., et al (1996) Marjuman (Cambrian) agnostoid trilobites of the Cow Head Group, western Newfoundland, Journal of Paleontology 70 5, 804-829
Robson S. P., Pratt B. R. (2001) Cambrian and Ordovician linguliform brachiopods from the Shallow Bay Formation (Cow Heard Group), Western Newfoundland, Journal of Paleontology 75 2, 241-260
Westrop S. R., Eoff J. D. (2012) Late Cambrian (Furongian; Paibian, Steptoean) agnostoid arthropods from the Cow Head Group, western Newfoundland, Journal of Paleontology 86 2, 201-237
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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