Cow Head CH 49 (Cambrian of Canada)

Where: Newfoundland and Labrador, Canada (49.9° N, 57.9° W)

• Paleocoordinates: 6.9° N, 86.4° W (Wright 2013)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Aphelaspis trilobite zone, Downes Point Member (Shallow Bay Formation), Steptoean (497.0 - 493.5 Ma)

• Boulders sampled from unit 5.6 of Cow Head section of James and Stevens 1986

Environment/lithology: shallow subtidal; lithified conglomerate

• Boulders represent shallow water shelf environment; conglomerate is debris flow shed from shelf-margin sites
• Carbonate conglomerate or breccia; clasts > 25 cm

Size class: macrofossils

Collected by C. H. Kindle and H. B. Whittington in the 1950s-60s; reposited in the GSC

Primary reference: S. R. Westrop and J. D. Eoff. 2012. Late Cambrian (Furongian; Paibian, Steptoean) agnostoid arthropods from the Cow Head Group, western Newfoundland. Journal of Paleontology 86(2):201-237 [M. Hopkins/M. Hopkins]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 127450: authorized by Melanie Hopkins, entered by Melanie Hopkins on 15.05.2012

Creative Commons license: CC0 (CC0)

Taxonomic list

• Only agnostid taxa reported
Show authors, comments, and common names
Artiopoda
 Agnostida - Diplagnostidae
Pseudagnostus cf. obesus, Pseudagnostus cf. communis
Pseudagnostus cf. communis Hall and Whitfield 1877
 Agnostida - Agnostidae
"Innitagnostus" inexpectans