St Hugues, 1.5 miles NW of station on Yamaska River (Ordovician of Canada)

Also known as 39 miles northeast of Montreal. Foerste (1916) Quebec locality 8.

Where: Quebec, Canada (45.8° N, 72.9° W: paleocoordinates 25.4° S, 48.2° W)

• outcrop-level geographic resolution

When: Amplexograptus manitoulinensis graptolite zone, Sainte-Monique Member (Nicolet River Formation), Maysvillian (450.2 - 449.6 Ma)

• Was Lorraine Cryptolithus bed; Now Breault bed of Nicolet River Formation, Sainte-Monique Member

• group of beds-level stratigraphic resolution

Environment/lithology: limestone

Size class: macrofossils

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 155412: authorized by Pete Wagner, entered by Pete Wagner on 11.04.2014, edited by Susan Scholze

Creative Commons license: CC BY (attribution)

Taxonomic list

Gastropoda
 Bellerophontida - Pterothecidae
Pterotheca harviei n. sp. Foerste 1924 snail
Bivalvia
 Unioni - Lyrodesmatidae
Lyrodesma huguesensis Foerste 1924 clam
Lyrodesma poststriatum Emmons 1842 clam
 Modiomorphida - Modiomorphidae
Colpomya faba Hall 1847 clam
Colpomya faba pusilla
 Myalinida - Ambonychiidae
Byssonychia radiata Hall 1847 clam
Tergomya
 Cyrtonellida - Cyrtolitidae
Cyrtolites ornatus Conrad 1838
 Archinacellida - Archinacellidae
Strophomenata
 Strophomenida - Plectambonitidae
 Strophomenida - Rafinesquinidae
Leptaena moniquensis Foerste 1924
Trilobita
 Olenida - Olenidae
Triarthrus huguesensis Foerste 1924 trilobite