Cow Head CH 81 (Cambrian of Canada)

Also known as Reef 2741

Where: Newfoundland and Labrador, Canada (49.9° N, 57.9° W: paleocoordinates 35.4° S, 59.3° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Tuckers Cove Member (Shallow Bay Formation), Sunwaptan (498.5 - 485.4 Ma)

• sample CH 81, Serotina interval, Plethopeltid-catillicephalid biofacies

• bed-level stratigraphic resolution

Environment/lithology: platform or shelf-margin reef; lithified limestone

• boulders derived from shelf-margin algal buildups

Size class: macrofossils

Primary reference: R. Ludvigsen, S. R. Westrop, and C. H. Kindle. 1989. Sunwaptan (Upper Cambrian) trilobites of the Cow Head Group, western Newfoundland, Canada. Palaeontographica Canadiana 6:1-175 [W. Kiessling/U. Merkel]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 81285: authorized by Wolfgang Kiessling, entered by Uta Merkel on 17.06.2008

Creative Commons license: CC BY (attribution)

Taxonomic list

Trilobita
 Harpetida - Heterocaryonidae
 Ptychopariida - Norwoodiidae
Paranorwoodia beta n. sp. trilobite
 Ptychopariida - Catillicephalidae
Onchonotus granulatus Rasetti 1944 trilobite
Peracheilus quadratus n. sp. trilobite
 Ptychopariida - Plethopeltidae
Stenopilus intermedius Clark 1924 trilobite
? Leiocoryphe occipitalis Rasetti 1944 trilobite
 Asaphida - Remopleurididae
Apatokephaloides macrops, "? Elkanaspis cristata" = Pseudokainella
"? Elkanaspis cristata" = Pseudokainella trilobite
 Asaphida - Ptychaspididae
Keithiella cylindrica Billings 1860 trilobite
 Asaphida - Hungaiidae
Hungaia magnifica Billings 1860 trilobite
 Corynexochida - Illaenuridae
Rasettia capax trilobite
 Corynexochida - Leiostegiidae
 Olenida - Loganellidae
Levisella (Levisella) punctata n. sp. Ludvigsen et al. 1989 trilobite
 Olenida - Olenidae
Bienvillia cf. corax Billings 1865 trilobite
Artiopoda
 Agnostida - Agnostidae