Wilson Loc 050. Lemieux Island (Ordovician of Canada)

Also known as Wilson 1946b Loc. 19.; Wilson 1946a 108.

Where: Quebec, Canada (45.4° N, 75.7° W: paleocoordinates 25.4° S, 52.3° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Diplacanthograptus spiniferus graptolite zone, Cystid Beds Member (Verulam Formation), Chatfieldian (460.9 - 449.5 Ma)

• PJW: Was Cobourg, but probably from Cystid Beds, which is now Verulam formation. (See Sinclair 1948; Dix & Al-Dulami 2011). Dix & Al-Dulami (2011) put this in the Diplacanthograptus spiniferus zone

• formation-level stratigraphic resolution

Environment/lithology: deep subtidal; lithified packstone and lithified, gray, calcareous mudstone

Size class: macrofossils

Reposited in the GSC

Collection methods: surface (float),

• collection taken from an active stone quarry; large blocks counted in the field

Primary reference: A. E. Wilson. 1946. Echinodermata of the Ottawa Formation of the Ottawa-St. Lawrence lowland. Geological Survey of Canada Bulletin 4:1-61 [G. Webster/G. Webster]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 195616: authorized by Pete Wagner, entered by Pete Wagner on 14.08.2018

Creative Commons license: CC BY (attribution)

Taxonomic list

Gastropoda
 Murchisoniina - Loxonematidae
"Hormotoma trentonensis" = Omospira trentonensis2
"Hormotoma trentonensis" = Omospira trentonensis2 Ulrich and Scofield 1897 snail
Hormotoma trentonensis crassa
Strophomenata
 Strophomenida - Rafinesquinidae
Rhynchonellata
 Pentamerida - Camerellidae
 Rhombifera - Pleurocystitidae
"Pleurocystites elegans" = Pleurocystites filitextus, "Pleurocystites ? robustus" = Pleurocystites squamosus
"Pleurocystites elegans" = Pleurocystites filitextus Billings 1854
"Pleurocystites ? robustus" = Pleurocystites squamosus Billings 1874