Also known as St. Lawrence Lowland
Where: Quebec, Canada (45.6° N, 73.6° W: paleocoordinates 26.1° S, 50.8° W)
• coordinate based on nearby landmark
• small collection-level geographic resolution
When: Terrebonne Member (Tetreauville Formation), Shermanian to Shermanian (460.9 - 449.5 Ma)
• "Terrebonne limestone" Flower (1952). When Flower wrote the paper used as reference here, the Terrebonne was considered a seperate formation. Today it is regarded as a facies variation of the Tetreauville Fm. (see Harland & Pickerill, 1982, Geol. Mag. 17; see also comments on lithology). Nevertheless it is given here as a member of the Tetreauville in order to include the name in the collection record. The Tetreau(lt)ville Fm. is Shermanian to Edenian in age according to Melchin & Legault (1985, Palynology 9).
• bed-level stratigraphic resolution
Environment/lithology: deep subtidal shelf; burrowed, nodular, rubbly, argillaceous limestone and shale
Size class: macrofossils
Collection methods: surface (float)
• collected "From the floor of the quarry [...] " (Flower, 1952 p. 49)
•RHF = collection of Rousseau H. Flower, transferred to the Smithsonian Institution/U.S. National Museum (see Wolberg, 1991, J. Paleont. 65(2)). The catalogue numbers given in the taxonomic list are taken from this reference.
Primary reference: R. H. Flower. 1952. New Ordovician Cephalopods from Eastern North America. Journal of Paleontology 26(1):24-59 [B. Kröger/T. Liebrecht] more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 89091: authorized by Björn Kröger, entered by Torsten Liebrecht on 04.05.2009