Where: Newfoundland and Labrador, Canada (49.8° N, 57.9° W: paleocoordinates 37.9° S, 68.0° W)

• local area-level geographic resolution

When: Ptychagnostus gibbus-Ptychagnostus punctuosus trilobite 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. AGE: Arcadian; refined by A. Hendy (6/2009) on the basis of biostratigraphic data.

•

•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 9632: authorized by Mark Patzkowsky, entered by Phil Borkow on 23.03.2001

Creative Commons license: CC BY (attribution)