St. Dominique, Chazy Group (Ordovician of Canada)

Where: Quebec, Canada (45.6° N, 72.9° W: paleocoordinates 27.6° S, 53.9° W)

• coordinate estimated from map

When: Chazy Group, Chazy (466.0 - 457.5 Ma)

Environment/lithology: marine; lithology not reported

Size classes: macrofossils, mesofossils

Primary reference: P. E. Raymond. 1906. The Chazy Formation and its fauna. Annals of the Carnegie Museum 3(4):498-596 [P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 172352: authorized by Björn Kröger, entered by Björn Kröger on 05.08.2015

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Trilobita
 Corynexochida - Illaenidae
"Illaenus globosus" = Stenopareia globosus
"Illaenus globosus" = Stenopareia globosus Billings 1859 trilobite
 Proetida - Bathyuridae
Bathyurus cf. angelini trilobite
Bathyurus cf. Bathyurus angelini
 Asaphida - Asaphidae
Isotelus cf. gigas Dekay 1824 trilobite
Isotelus cf. Isotelus gigas
"Asaphus marginalis" = Basilicus (Basiliella) whittingtoni Shaw 1968 trilobite
 Asaphida - Raphiophoridae
Lonchodomas chaziensis Shaw 1968 trilobite
see Shaw (1968, p. 34)
Strophomenata
 Strophomenida - Rafinesquinidae
Rhynchonellata
 Orthida - Plaesiomyidae
"Plaesiomys platys" = Multicostella platys
"Plaesiomys platys" = Multicostella platys Billings 1859
 Orthida - Plectorthidae
Hebertella acuminata, "Hebertella borealis" = Mimella borealis
"Hebertella borealis" = Mimella borealis Billings 1859
Bivalvia
 Myalinida - Ambonychiidae
"Clionychia montrealensis" = Cleionychia montrealensis
"Clionychia montrealensis" = Cleionychia montrealensis Billings 1859 clam
Gastropoda
 Trochonematoidea - Trochonematidae
"Trochonema umbilicatum" = Trochonema umbilicata
"Trochonema umbilicatum" = Trochonema umbilicata Hall 1847 snail
 Euomphalina - Ophiletidae
"Ophileta cf. compacta" = Lecanospira compacta
"Ophileta cf. compacta" = Lecanospira compacta Salter 1859 snail
Ophileta cf. Ophileta compacta
 Euomphalina - Raphistomatidae
Raphistoma stamineum, "Pleurotomaria cf. laurentina" = Ceratopea laurentina
Raphistoma stamineum Hall 1847 snail
"Pleurotomaria cf. laurentina" = Ceratopea laurentina Billings 1859 snail
Pleurotomaria cf. Pleurotomaria laurentia
 Murchisoniina - Eotomariidae
"Liospira americanum" = Liospira americana
"Liospira americanum" = Liospira americana Billings 1860 snail
Eocrinoidea
  -
Anthozoa
 Cystiphyllida - Fletcheriidae
Rhodophyceae
  - Solenoporaceae