Melville Peninsula, north of Quarman Point, Bad Cache Rapids Formation (Ordovician of Canada)

Where: Northwest Territories, Canada (68.5° N, 81.5° W: paleocoordinates 4.2° S, 42.1° 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, gray, argillaceous limestone

• knobby-weathered, finely crystalline to semi-lithographic, medium greyish brown to greenish mottled, argillaceous limestone, shaly partings.

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 26950: 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
Anthozoa
 Heliolitida - Palaeoporitidae
Protrochiscolithus magnus
 Heliolitida - Coccoserididae
Coccoseris astomata
Coccoseris astomata Flower 1961 tabulate coral
 Heliolitida - Halysitidae
Catenipora sp.
Catenipora sp. Lamarck 1816 tabulate coral
 Heliolitida - Cyrtophyllidae
Cyrtophyllum pattersoni
 Sarcinulida - Billingsariidae
Billingsaria parvituba
Billingsaria parvituba Troedsson 1928 tabulate coral
 Stauriida - Streptelasmatidae
Grewingkia robusta
Grewingkia robusta Whiteaves 1896 horn coral
Trilobita
 Corynexochida - Illaenidae
"Bumastus (Bumastoides) sp." = Bumastoides
"Bumastus (Bumastoides) sp." = Bumastoides Whittington 1954 trilobite
Strophomenata
 Strophomenida - Strophomenidae
"Strophomena undulosa" = Nasutimena undulosa, Strophomena cf. lenta
"Strophomena undulosa" = Nasutimena undulosa Roy 1941
Rhynchonellata
 Rhynchonellida - Rhynchotrematidae
Rhynchotrema sp.
Rhynchotrema sp. Hall 1860
 Orthida - Plaesiomyidae
"Plaesiomys (Dinorthis) cf. iphigenia" = Plaesiomys iphigenia
"Plaesiomys (Dinorthis) cf. iphigenia" = Plaesiomys iphigenia Billings 1865
Stenolaemata
 Trepostomida - Amplexoporidae
Amplexopora arctica
Gastropoda
 Murchisoniina - Eotomariidae
Liospira sp.
Liospira sp. Ulrich and Scofield 1897 snail