Infralittoral brach-bry-tril-crinoid community, upper Nicolet River Fm., La Prai (Ordovician of Canada)

Where: Quebec, Canada (45.4° N, 73.4° W: paleocoordinates 26.3° S, 50.8° W)

• coordinate based on nearby landmark

When: upper Member (Nicolet River Formation), Edenian (451.0 - 450.2 Ma)

• "U. Ord. Edenian"

Environment/lithology: transition zone or lower shoreface; gray siltstone and shale

• "dark gray sh, sltst, and fine to medium ss. infralittoral"

Size class: macrofossils

Primary reference: H. J. Hofmann. 1982. Middle to late Ordovician fossiliferous rocks of the Montreal area. In Y. Globensky (ed.), 3rd North American Paleontology Convention Field Trips Guidebook. Montreal Quebec D1-D41 [M. Uhen/J. Ju/M. Uhen]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 440: authorized by Jack Sepkoski, entered by Mike Sommers on 08.12.1998

Creative Commons license: CC BY (attribution)

Taxonomic list

• "Hofmann, 1982. p D38."
Show authors, comments, and common names
unclassified
  -
Clidiophora sp.
Clidiophora sp.
3 species
Trilobita
 Phacopida - Calymenidae
Calymene sp.
Calymene sp. Brongniart 1822 trilobite
 Olenida - Olenidae
Triarthrus sp.
Triarthrus sp. Green 1832 trilobite
 Asaphida - Asaphidae
Isotelus sp.
Isotelus sp. Dekay 1824 trilobite
 Trinucleida - Trinucleidae
Cryptolithus sp.
Cryptolithus sp. Green 1832 trilobite
Tentaculita
 Cornulitida - Cornulitidae
Cornulites sp.
Cornulites sp. Schlotheim 1820
Cephalopoda
 Dissidocerida - Geisonoceratidae
Geisonoceras sp.
Geisonoceras sp. Hyatt 1884
Gastropoda
 Murchisoniina - Hormotomidae
Hormotoma sp.
Hormotoma sp. Salter 1859 snail
Bivalvia
 Solemyida - Ctenodontidae
Ctenodonta sp.
Ctenodonta sp. Salter 1852 clam
2 species
 Modiomorphida - Modiomorphidae
Colpomya sp., Cymatonota sp.
Colpomya sp. Ulrich 1893 clam
Cymatonota sp. Ulrich 1893 clam
Rhynchonellata
 Orthida - Dalmanellidae
Dalmanella sp.
Dalmanella sp. Hall and Clarke 1892
 Atrypida - Anazygidae
Catazyga sp.
Catazyga sp. Hall and Clarke 1893
Strophomenata
 Strophomenida - Rafinesquinidae
Leptaena sp.
Leptaena sp. Dalman 1828
 Strophomenida - Sowerbyellidae
Sowerbyella sp.
Sowerbyella sp. Jones 1928
Lingulata
 Lingulida - Lingulidae
Lingula sp.
Lingula sp. Bruguiére 1797
Polychaeta
 Cuniculepadida - Lepidocoleidae
Lepidocoleus sp.
Lepidocoleus sp. Faber 1886 scale worm
Pterobranchia
 Graptoloidea - Diplograptidae
Orthograptus sp.
Orthograptus sp. Lapworth 1873 graptolite
Crinoidea
  -
Crinoidea indet.
Crinoidea indet. Miller 1821 Sea lily
crinoid columnals