GSC 89831. Between Hall Beach runway & shore, Melville Peninsula, (Ordovician to of Canada)

Where: Northwest Territories, Canada (68.8° N, 81.2° W: paleocoordinates 4.1° S, 41.9° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Amorphognathus superbus conodont zone, Amadjuak Formation (Bad Cache Rapids Group), Edenian to Edenian (451.0 - 449.6 Ma)

• Now considered a group

• formation-level stratigraphic resolution

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

• Thin-bedded, light grey to brown weathered, argillaceous limestone.

Size classes: macrofossils, mesofossils

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 26943: 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
  -
"Astraeospongid" indet., "Isotelid" sp., "Scolecodonts" sp.
Chlorophyceae
  - Receptaculitidae
Receptaculites sp.
Receptaculites sp. Defrance 1827
Gastropoda
 Murchisoniina - Subulitidae
Subulites (Subulites) sp.
Subulites (Subulites) sp. Emmons 1842 snail
 Murchisoniina - Lophospiridae
Lophospira sp.
Lophospira sp. Whitfield 1886 snail
 Euomphalina - Macluritidae
Maclurites sp.
Maclurites sp. Le Sueur 1818 snail
Cephalopoda
 Discosorida - Westonoceratidae
? Westonoceras sp.
? Westonoceras sp. Foerste 1924
 Oncocerida - Oncoceratidae
? Richardsonoceras sp.
 Multiceratoidea - Clinoceratidae
Whitfieldoceras sp.
Whitfieldoceras sp. Foerste 1932
 Endocerida - Endoceratidae
Endoceras sp.
Endoceras sp. Hall 1847
 Orthocerida - Proteoceratidae
Gorbyoceras baffinense
 Actinocerida - Actinoceratidae
Kochoceras foordi, Kochoceras cf. mantelli, Kochoceras cf. cuneiforme
Kochoceras cf. cuneiforme Troedsson 1926
Rhynchonellata
 Orthida - Plaesiomyidae
"Plaesiomys (Dinorthis) cf. iphigenia" = Plaesiomys iphigenia
"Plaesiomys (Dinorthis) cf. iphigenia" = Plaesiomys iphigenia Billings 1865
Strophomenata
 Strophomenida - Rafinesquinidae
Rafinesquina pronis, Rafinesquina sp., Rafinesquina aff. deltoidea
Rafinesquina sp. Hall and Clarke 1892
 Strophomenida - Strophomenidae
Strophomena cf. lenta, Strophomena sp., "Strophomena undulosa" = Nasutimena undulosa
Strophomena sp. Rafinesque and De Blainville 1824
"Strophomena undulosa" = Nasutimena undulosa Roy 1941
 Strophomenida - Sowerbyellidae
Sowerbyella sp.
Sowerbyella sp. Jones 1928
Stenolaemata
 Cryptostomata - Arthrostylidae
Helopora sp.
Helopora sp. Hall 1851
 Trepostomida - Amplexoporidae
Amplexopora arctica
Ostracoda
 Leperditicopida - Leperditiidae
Eoleperditia sp.
Eoleperditia sp. Swartz 1949 ostracod
Trilobita
 Phacopida - Cheiruridae
Ceraurus sp.
Ceraurus sp. Green 1832 trilobite
 Corynexochida - Illaenidae
"Nanillaenus punctatus" = Thaleops punctata, "Bumastus (Bumastoides) aff. tenuirugosus" = Bumastoides, "Bumastus (Bumastoides) sp." = Bumastoides
"Nanillaenus punctatus" = Thaleops punctata Raymond 1905 trilobite
"Bumastus (Bumastoides) aff. tenuirugosus" = Bumastoides trilobite
"Bumastus (Bumastoides) sp." = Bumastoides Whittington 1954 trilobite
unclassified
  -
Echinodermata indet.
Anthozoa
 Heliolitida - Heliolitidae
? Esthonia sp.
? Esthonia sp. Sokolov 1955 tabulate coral
 Sarcinulida - Billingsariidae
Billingsaria parvituba
Billingsaria parvituba Troedsson 1928 tabulate coral