Cow Head CH 75A (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 (493.5 - 487.5 Ma)

• sample CH 75A, 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 81277: authorized by Wolfgang Kiessling, entered by Uta Merkel on 16.06.2008

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Artiopoda
 Agnostida - Agnostidae
Micragnostus intermedius, Neoagnostus canadensis
Trilobita
 Olenida - Loganellidae
Levisella (Levisella) brevifrons
Levisella (Levisella) brevifrons Rasetti 1944 trilobite
 Olenida - Dokimokephalidae
Bellaspidella sulcata, Bellaspidella parallela
Bellaspidella parallela Ludvigsen et al. 1989 trilobite
 Corynexochida - Illaenuridae
Rasettia marcoui
 Corynexochida - Leiostegiidae
Arcifimbria brevifrons
 Harpetida - Harpididae
Loganopeltoides minuta
 Ptychopariida - Elviniidae
Pseudosaukia sesostris
Pseudosaukia sesostris Billings 1865 trilobite
 Ptychopariida - Plethopeltidae
Plethopeltis acutus
 Ptychopariida - Catillicephalidae
Theodenisia cf. communis, Onchonotus cf. antiqus
 Asaphida - Ptychaspididae
Keithiella depressa
Keithiella depressa Rasetti 1944 trilobite