Where: Newfoundland and Labrador, Canada (49.0° N, 55.5° W: paleocoordinates 39.6° S, 67.3° W)
• coordinate based on political unit
When: P. gibbus - P. punctuosus zone, Downes Point (lower) Member (Shallow Bay Formation), Marjumian (504.5 - 497.0 Ma)
• Kindle Zone 3 (preliminary, agnostoid-based evaluation by co-author) JA: correlates with Utah zones (see Fig. 6) that are entirely Middle Cambrian according to Gradstein et al. 2004.
•
•Now would be Topazan-Marjumian (PJW).
• member-level stratigraphic resolution
Environment/lithology: offshore shelf; lithified, carbonaceous conglomerate
Size classes: macrofossils, mesofossils
Collection methods: Specimens from boulders.
Primary reference: S. R. Westrop, R. Ludvigsen, and C. H. Kindle. 1996. Marjuman (Cambrian) agnostoid trilobites of the Cow Head Group, western Newfoundland. Journal of Paleontology 70(5):804-829 [M. Patzkowsky/P. Borkow/P. Wagner]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 9643: authorized by Mark Patzkowsky, entered by Phil Borkow on 15.11.2000
Creative Commons license: CC BY (attribution)
Taxonomic list
Artiopoda | |
? Kormagnostus copelandi Westrop et al. 1996 | |
Hypagnostus parvifrons Linnarsson 1869 |