Melville Peninsula, east shore of Hall Lake, Bad Cache Rapids Formation: Wildernessian, Canada

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
informal Strophomenid sp.
informal Asaphid sp.
Chlorophyceae - Dasycladales - Dasycladaceae
Cyclocrinites aff. globosus
Chlorophyceae - Receptaculitidae
Receptaculites sp. Defrance 1827
Trilobita - Corynexochida - Illaenidae
Bumastus (Bumastoides) sp. Whittington 1954
spelled with current rank as Bumastoides
Gastropoda - Murchisoniina - Trochonematidae
Trochonema sp. Salter 1859
Gastropoda - Murchisoniina - Hormotomidae
Hormotoma sp. (Salter 1859)
Gastropoda - Euomphalina - Macluritidae
Maclurites sp. Le Sueur 1818
Cephalopoda - Ascocerida - Ascoceratidae
Billingsites aff. borealis
Rhynchonellata - Rhynchonellida - Rhynchotrematidae
Rhynchotrema arcticum (Roy 1941)
recombined as Hiscobeccus arcticus
Rhynchonellata - Orthida - Plaesiomyidae
Plaesiomys (Dinorthis) cf. iphigenia (Billings 1865)
recombined as Plaesiomys iphigenia
Anthozoa
Anthozoa indet. Ehrenberg 1834
Anthozoa - Heliolitida - Halysitidae
Catenipora spp.
see common names

Geography
Country:Canada State/province:Northwest Territories County:District of Franklin
Coordinates: 68.7° North, 81.9° West (view map)
Paleocoordinates:4.0° South, 42.2° West
Basis of coordinate:stated in text
Geographic resolution:outcrop
Time
Period:Ordovician Epoch:Late/Upper Ordovician
10 m.y. bin:Ordovician 4-5
*Period:Middle Ordovician - Late/Upper Ordovician *Local age/stage:Wildernessian - Barneveldian
Key time interval:Wildernessian
Age range of interval:457.00000 - 449.80000 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Formation:Bad Cache Rapids
Stratigraphic resolution:formation
Lithology and environment
Primary lithology:brown,gray argillaceous "limestone"
Includes fossils?Y
Lithology description: Thin-bedded, knobby-weathering, microcrystalline, light to medium greyish brown to pinkish grey, fossiliferous limestone, argillaceous partings.
Environment:open shallow subtidal
Glacial or sequence phase:transgressive
Taphonomy
Size of fossils:macrofossils
Collection methods and comments
Collection methods:field collection
Reason for describing collection:biostratigraphic analysis
Metadata
Database number:26946
Authorizer:S. Holland Enterer:T. Hanson
Modifier:S. Holland Research group:marine invertebrate
Created:2002-11-09 11:04:53 Last modified:2004-10-22 13:12:02
Access level:the public Released:2002-11-09 11:04:53
Creative Commons license:CC BY
Reference information

Primary reference:
7452. 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]