St. Hilaire, Lorraine Fm. (Ordovician of Canada)

Also known as Mont-Saint-Hilaire

Where: Quebec, Canada (45.6° N, 73.2° W: paleocoordinates 25.5° S, 48.5° W)

• coordinate estimated from map

When: Lorraine Formation, Maysvillian (450.2 - 449.6 Ma)

• "Pholadomorpha zone and Proetus zone = Lorraine Fm", in Foerste (1924)

Environment/lithology: marine; limestone

Size classes: macrofossils, mesofossils

Primary reference: A. F. Foerste. 1924. Upper Ordovician faunas of Ontario and Quebec. Geological Survey of Canada Memoir 138(121):1-99 [P. Wagner/P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 173128: authorized by Björn Kröger, entered by Susan Scholze on 10.09.2015

Creative Commons license: CC BY (attribution)

Taxonomic list

Ostracoda
 Palaeocopida - Tetradellidae
Ceratopsis oculifera Hall 1871 ostracod
 Palaeocopida - Hollinidae
Ctenobolbina ciliata Emmons 1855 ostracod
Trilobita
 Asaphida - Asaphidae
Isotelus gigas Dekay 1824 trilobite
Tergomya
 Cyrtonellida - Cyrtolitidae
Cyrtolites ornatus Conrad 1838
Bivalvia
 Myalinida - Ambonychiidae
Byssonychia suberecta Ulrich 1893 clam
Byssonychia radiata Hall 1847 clam
 Ostreida - Pterineidae
"Pterina (Caritodens) demissa" = Pterinea demissa
"Pterina (Caritodens) demissa" = Pterinea demissa Conrad 1842 oyster
 Modiomorphida - Modiomorphidae
Psiloconcha inornata Ulrich 1893 clam
Craniata
 Craniopsida - Craniopsidae
Strophomenata
 Strophomenida - Rafinesquinidae