Where: Quebec, Canada (50.2° N, 63.7° W: paleocoordinates 27.2° S, 46.9° W)

• coordinate estimated from map

• local area-level geographic resolution

When: Bathyurus granulosus/Ceraurinella nahanniensis trilobite zone, lower Member (Mingan Formation), Whiterockian (470.0 - 457.3 Ma)

• Bathyurus granulosus (nearshore biofacies) and Ceraurinella nahanniensis (open shelf biofacies) biozones are partially concurrent (Tremblay and Westrop 1991).

Environment/lithology: lithified grainstone

Size class: macrofossils

Collected by F. C. Shaw in the 1960s-70s; reposited in the GSC

• "Field work for the present report was undertaken in 1966, 1971, and 1972 by F. C. Shaw and in 1978 by T. E. Bolton, M. J. Copeland, and G. S. Nowlan. Additional material was supplied by A. A. Petryk, A. Desrochers, and S. Desbiens."

Primary reference: F. C. Shaw and T. E. Bolton. 2011. Ordovician trilobites from the Romaine and Mingan Formations (Ibexian-Late Whiterockian), Mingan Islands, Quebec. Journal of Paleontology 85(3):406-441 [M. Hopkins/M. Hopkins]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 111361: authorized by Melanie Hopkins, entered by Melanie Hopkins on 23.06.2011

Creative Commons license: CC BY (attribution)