Melville Peninsula, north shore Foster Bay, Bad Cache Rapids Formation (Ordovician of Canada)

Where: Northwest Territories, Canada (69.0° N, 81.7° W: paleocoordinates 3.8° S, 41.9° 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; gray, yellow, argillaceous limestone

• Thick-bedded to massive, light grey, grey mottled to yellowish-orange weathered, fine-grained fossiliferous limestone, argillaceous partings and fossiliferous abundant in upper 20 feet of recessive thin-bedded 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 26947: authorized by Steven Holland, entered by Tori Hanson on 09.11.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
unclassified
  -
"Leptaenid" sp., "Isotelid" sp., "Cheirurid" sp.
Chlorophyceae
  - Receptaculitidae
Receptaculites aff. biconstrictus, Receptaculites sp.
Receptaculites sp. Defrance 1827
Anthozoa
  -
Anthozoa indet.
Anthozoa indet. Ehrenberg 1834
 Heliolitida - Cyrtophyllidae
Cyrtophyllum pattersoni
Ostracoda
 Leperditicopida - Leperditiidae
Eoleperditia sp.
Eoleperditia sp. Swartz 1949 ostracod
Brachiopoda
  -
Brachiopoda indet.
Brachiopoda indet. Cuvier 1805
Orthid fragments
Strophomenata
 Strophomenida - Strophomenidae
"Strophomena undulosa" = Nasutimena undulosa
"Strophomena undulosa" = Nasutimena undulosa Roy 1941
Cephalopoda
 Actinocerida - Gonioceratidae
Lambeoceras sp.
Lambeoceras sp. Foerste 1917
 Actinocerida - Actinoceratidae
Kochoceras cf. cuneiforme
 Orthocerida - Tripteroceratidae
Rasmussenoceras sp.
Rasmussenoceras sp. Foerste 1932
 Orthocerida - Proteoceratidae
Ephippiorthoceras compressum
 Discosorida - Cyrtogomphoceratidae
Cyrtogomphoceras alcocki
 Discosorida - Westonoceratidae
Winnipegoceras sp.
Winnipegoceras sp. Foerste 1928
 Oncocerida - Oncoceratidae
? Oncoceras sp.
? Oncoceras sp. Hall 1847
Gastropoda
 Euomphalina - Macluritidae
"Maclurites manitobensis" = Maclurina manitobensis
"Maclurites manitobensis" = Maclurina manitobensis Whiteaves 1890 snail
Maclurites manitobensis var. ovalis
 Murchisoniina - Subulitidae
"Subulites (Fusispira) sp." = Fusispira
"Subulites (Fusispira) sp." = Fusispira Hall 1872 snail
 Murchisoniina - Hormotomidae
Hormotoma sp.
Hormotoma sp. Salter 1859 snail
 Murchisoniina - Trochonematidae
Trochonema sp.
Trochonema sp. Salter 1859 snail
unclassified
  -
Echinodermata indet.