Melville Peninsula, east-central shore Hall Lake, Bad Cache Rapids Formation (Ordovician of Canada)

Where: Northwest Territories, Canada (68.7° N, 81.9° W: paleocoordinates 4.1° S, 42.2° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Bad Cache Rapids Formation, Wildernessian (457.3 - 449.6 Ma)

• formation-level stratigraphic resolution

Environment/lithology: open shallow subtidal; brown, argillaceous limestone

• thin-bedded, brown argillaceous limestone.

Size class: macrofossils

Primary reference: T. E. Bolton. 1977. Ordovician megafauna, Melville Peninsula, southeastern District of Franklin. Geological Survey of Canada, Bulletin 269:23-75 [S. Holland/T. Hanson/M. Uhen]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 26955: authorized by Steven Holland, entered by Tori Hanson on 09.11.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

Chlorophyceae
  - Receptaculitidae
Receptaculites sp. Defrance 1827
Cephalopoda
 Orthocerida - Proteoceratidae
 Actinocerida - Actinoceratidae
Actinoceras ruedemanni
Actinoceras ruedemanni var. clarkei [entered as Actinoceras ruedemanni]
 Actinocerida - Gonioceratidae
 Cyrtocerinida - Cyrtocerinidae
Cyrtocerina sp. Billings 1865
 Oncocerida - Diestoceratidae
Gastropoda
 Murchisoniina - Trochonematidae
Trochonema sp. Salter 1859 snail
 Murchisoniina - Subulitidae
"Subulites (Fusispira) sp." = Fusispira
"Subulites (Fusispira) sp." = Fusispira Hall 1872 snail
Trilobita
 Phacopida - Cheiruridae
Sphaerocoryphe sp. Angelin 1854 trilobite
Anthozoa
 Stauriida - Streptelasmatidae
Grewingkia sp. Dybowski 1873 horn coral