Grande Coupe Beds, Bed 1, loc. 62L9 (Ordovician of Canada)

Where: Quebec, Canada (49.0° N, 64.0° W: paleocoordinates 23.6° S, 39.0° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: Grande Coupe Beds Formation (Matapedia Group), Ashgillian (449.5 - 443.7 Ma)

• Listed as Pusgillian/Rawtheyan, BA6 Foliomena biozone

• group of beds-level stratigraphic resolution

Environment/lithology: offshore shelf; lithified, brown, green, argillaceous limestone and poorly lithified, calcareous shale

• Originally listed as White Head Formation, but tentatively (and informally) modified in Lesperance et al., 1987. Micrite beds are 2-10 cm (commonly 5 cm) thick and interbeds are separated by 1-15 cm thick shale; fm is 75% shale, but sampled section is 25% shale
• Metamorphosed, brown, greenish weathering, argillaceous lithographic limestone (micrite) interbedded with calcareous shale

Size classes: macrofossils, mesofossils

Primary reference: P. M. Sheehan and P.J. Lespérance. 1978. The occurrence of the Ordovician brachiopod Foliomena at Percé, Quebec. Canadian Journal of Earth Sciences 15:454-458 [P. Novack-Gottshall/P. Hearn]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 76075: authorized by Phil Novack-Gottshall, entered by Paul Hearn on 12.11.2007

Creative Commons license: CC BY (attribution)

Taxonomic list

• BA6 Foliomena brachiopod (within Stenoparia trilobite) community; sampling focused on brachiopods
unclassified
  -
Trilobita
 Asaphida - Cyclopygidae
"Heterocyclopyge insolens" = Microparia (Heterocyclopyge) insolens
"Heterocyclopyge insolens" = Microparia (Heterocyclopyge) insolens Schuchert and Cooper 1930 trilobite
 Trinucleida - Raphiophoridae
 Trinucleida - Trinucleidae
Tretaspis "sp. subsp. A" M'Coy 1849 trilobite
Tretaspis "sp. subsp. B" M'Coy 1849 trilobite
 Phacopida - Pterygometopidae
Calyptaulax sp. Cooper 1930 trilobite
Calyptaulax glabella Cooper 1930 trilobite
 Phacopida - Calymenidae
Diacalymene consimilis Schuchert and Cooper 1930 trilobite
 Corynexochida - Illaenidae
Stenopareia "sp. A" Holm 1886 trilobite
Stenopareia "sp. B" Holm 1886 trilobite
Lingulata
  -
Lingulata indet. Gorjansky and Popov 1985
Strophomenata
  -
Strophomenata indet. Williams et al 1996
 Strophomenida - Leptestiidae
"? Diambonia septata" = Leangella (Leangella) septata
"? Diambonia septata" = Leangella (Leangella) septata Cooper 1930
 Strophomenida - Foliomenidae
Rhynchonellata
  -
Rhynchonellata indet. Williams et al. 1996
 Atrypida - Cyclospiridae
Crinoidea
  -
Crinoidea indet. Miller 1821 Sea lily
Columnals