Nicolet River Formation, Bed: 550 (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: deep subtidal shelf; poorly lithified shale and poorly lithified, silty shale

• Listed as Deep Midshelf
• 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 77222: 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
Crinoidea
  -
Crinoidea indet. Miller 1821 Sea lily
Lingulata
 Lingulida - Obolidae
Lingulella sp. Salter 1866
Craniata
 Craniopsida - Craniopsidae
Strophomenata
 Strophomenida - Sowerbyellidae
 Strophomenida - Strophomenidae
Strophomena sp. Rafinesque and De Blainville 1824
 Strophomenida - Rafinesquinidae
Rhynchonellata
 Atrypida - Anazygidae
Catazyga cf. headi Billings 1862
 Orthida - Dalmanellidae
"Onniella meeki" = Cincinnetina meeki
"Onniella meeki" = Cincinnetina meeki Miller 1875
Gastropoda
 Bellerophontida - Sinuitidae
Sinuites cf. cancellatus Hall 1847 snail
Bivalvia
 Nuculanida - Cucullellidae
 Ostreida - Pterineidae
Pterinea demissa Conrad 1842 oyster
 Cardiidia - Grammysiidae
Cuneamya neglecta Hall and Whitfield 1875 clam
 Modiomorphida - Modiomorphidae
Cymatonota parallela Hall 1847 clam
 Pholadomyida - Pholadomyidae
Rhytimya compressa Ulrich 1893 clam
Trilobita
 Proetida - Proetidae
Proetus chambliensis Foerste 1914 trilobite