Where: Quebec, Canada (50.2° N, 63.9° W: paleocoordinates 27.2° S, 47.0° W)
• coordinate estimated from map
• local area-level geographic resolution
When: Bathyurus granulosus/Ceraurinella nahanniensis trilobite zone, lower Member (Mingan Formation), Whiterockian (471.8 - 457.5 Ma)
• Bathyurus granulosus (nearshore biofacies) and Ceraurinella nahanniensis (open shelf biofacies) biozones are partially concurrent (Tremblay and Westrop 1991).
Environment/lithology: lagoonal or restricted shallow subtidal; lithified, nodular wackestone and lithified, nodular 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 111431: authorized by Melanie Hopkins, entered by Melanie Hopkins on 24.06.2011
Creative Commons license: CC BY (attribution)
Taxonomic list
Trilobita | |
Dolichoharpes sp. Whittington 1949 trilobite | |
Amphilichas cf. conradi Chatterton and Ludvigsen 1976 trilobite
Amphilichas minganensis Billings 1865 trilobite | |
Isotelus harrisi Raymond 1905 trilobite | |
Failleana limbata Raymond 1910 trilobite | |
Thaleops conifrons Billings 1859 trilobite
Thaleops vindex Billings 1865 trilobite
Illaenus bayfieldi Billings 1859 trilobite
Stenopareia globosus Billings 1859 trilobite | |
Uromystrum minor Raymond 1905 trilobite | |
Pliomerops canadensis Billings 1859 trilobite | |
Ceraurinella pompilia Billings 1865 trilobite
Sphaerexochus parvus Billings 1865 trilobite | |
Calyptaulax annulata Raymond 1905 trilobite |