Nicolet River Formation, Bed: 90 (Ordovician of Canada)

Where: Quebec, Canada (46.0° N, 72.0° W: paleocoordinates 26.2° S, 49.5° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: Nicolet River Formation (Lorraine Group), Caradoc (458.4 - 449.5 Ma)

• Listed as Upper Caradoc, Local series: Lorraine(Maysville)

• group of beds-level stratigraphic resolution

Environment/lithology: offshore shelf; poorly lithified shale and poorly lithified, silty shale

• Listed as Deep Mid-shelf
• Shale and silty shale

Size classes: macrofossils, mesofossils

Primary reference: P. W. Bretsky. 1977. Macroinvertebrate teilzones and episodic faunal changes from an Upper Ordovician flysch in Quebec. Canadian Journal of Earth Sciences 14:1674-1686 [P. Novack-Gottshall/P. Hearn/M. Uhen]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 77221: authorized by Phil Novack-Gottshall, entered by Paul Hearn on 02.01.2008

Creative Commons license: CC BY (attribution)

Taxonomic list

• No ostracodes (although rare anyway) or rare taxa; Sample volume is an estimate
Rhynchonellata
 Atrypida - Anazygidae
 Orthida - Dalmanellidae
Dalmanellidae indet. Schuchert 1913
"Onniella meeki" = Cincinnetina meeki Miller 1875
 Orthida - Heterorthidae
Heterorthina sp. Bancroft 1928
 Orthida - Cyclocoeliidae
 Rhynchonellida - Sphenotretidae
Strophomenata
 Strophomenida - Sowerbyellidae
Eoplectodonta sp. Kozlowski 1929
Bivalvia
 Nuculanida - Cucullellidae
 Nuculida - Praenuculidae
Gastropoda
 Bellerophontida - Tropidodiscidae
Temnodiscus parvus Koken and Perner 1925 snail
Trilobita
 Trinucleida - Trinucleidae
"Cryptolithus bellulus" = Cryptolithus tessellatus
"Cryptolithus bellulus" = Cryptolithus tessellatus Green 1832 trilobite