Cow Head CH 74 (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 74, 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/M. Hopkins]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 81284: authorized by Wolfgang Kiessling, entered by Uta Merkel on 17.06.2008

Creative Commons license: CC BY (attribution)

Taxonomic list

Trilobita
 Asaphida - Remopleurididae
 Asaphida - Ptychaspididae
Keithiella depressa Rasetti 1944 trilobite
 Asaphida - Hungaiidae
Hungaia devinei trilobite
 Ptychopariida - Plethopeltidae
Stenopilus intermedius Clark 1924 trilobite
 Ptychopariida - Catillicephalidae
Onchonotus richardsoni Walcott 1911 trilobite
 Ptychopariida - Ptychopariidae
"Loganellus logani" = Ptychoparia logani
"Loganellus logani" = Ptychoparia logani Devine 1863 trilobite
 Ptychopariida - Raymondinidae
 Trinucleida - Alsataspididae
? Hermosella sp. Lu and Chien 1978 trilobite
 Olenida - Dokimokephalidae
 Corynexochida - Leiostegiidae
 Corynexochida - Illaenuridae
Rasettia capax trilobite
Artiopoda
 Agnostida - Agnostidae
"Micragnostus intermedius" = Micragnostus pehuenchensis
"Micragnostus intermedius" = Micragnostus pehuenchensis Rusconi 1953
 Agnostida - Diplagnostidae