Shaw collection Qu-5 (Ordovician of Canada)

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, upper 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

• see also Shaw 1980
• see also Shaw 1980

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 111432: authorized by Melanie Hopkins, entered by Melanie Hopkins on 24.06.2011

Creative Commons license: CC BY (attribution)

Taxonomic list

• Abundances reported to genus level only (Table 1)
 Corynexochida - Styginidae
Failleana limbata Raymond 1910 trilobite
 Corynexochida - Illaenidae
Thaleops vindex Billings 1865 trilobite
Thaleops conifrons Billings 1859 trilobite
Stenopareia globosus Billings 1859 trilobite
 Phacopida - Pterygometopidae
Calyptaulax sp. Cooper 1930 trilobite
 Phacopida - Cheiruridae
? Nieszkowskia sp. Schmidt 1881 trilobite
Ceraurinella pompilia Billings 1865 trilobite
Sphaerexochus parvus Billings 1865 trilobite
 Phacopida - Pliomeridae
Pliomerops canadensis Billings 1859 trilobite
 Harpida - Harpetidae
Hibbertia valcourensis Shaw 1968 trilobite
Dolichoharpes sp. Whittington 1949 trilobite
 Proetida - Bathyuridae
Uromystrum minor Raymond 1905 trilobite
 Asaphida - Asaphidae
Isotelus harrisi Raymond 1905 trilobite
 Asaphida - Remopleurididae
Eorobergia sp. Cooper 1953 trilobite
 Lichida - Lichidae
Amphilichas cf. conradi Chatterton and Ludvigsen 1976 trilobite
Amphilichas minganensis Billings 1865 trilobite