Mackenzie Mtns, Whittaker Range Loc. 3, Whittaker Fm Strophomena-Ceraurus Fauna (Ordovician of Canada)

Where: Northwest Territories, Canada (62.5° N, 124.9° W: paleocoordinates 6.7° N, 57.1° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Whittaker Formation, Shermanian (457.3 - 449.6 Ma)

• formation-level stratigraphic resolution

Environment/lithology: deep subtidal; gray, argillaceous limestone and gray dolomite

• Quiet, deeper water environment with a soft muddy substrate.
• Gray to dark gray argillaceous limestone; dark gray dolostone.

Size class: macrofossils

Collection methods: Collection also includes isotelids, otarionids, lichids, proetids, odontopleurids, illaenids, and calymenids.

Primary reference: R. Ludvigsen. 1975. Ordovician formations and faunas, southern Mackenzie Mountains. Canadian Journal of Earth Sciences 12:663-697 [S. Holland/T. Hanson/J. Ju]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 25318: authorized by Steven Holland, entered by Tori Hanson on 08.09.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
unclassified
  -
Dilochoharpes sp.
Anthozoa
 Heliolitida - Halysitidae
Catenipora sp.
Catenipora sp. Lamarck 1816 tabulate coral
 Stauriida - Streptelasmatidae
Streptelasma sp.
Streptelasma sp. Hall 1847 horn coral
Rhynchonellata
 Atrypida - Cyclospiridae
? Cyclospira sp.
? Cyclospira sp. Hall and Clarke 1893
 Orthida - Platyorthidae
Diceromyonia sp.
Diceromyonia sp. Wang 1949
 Orthida - Plaesiomyidae
Dinorthis sp.
Dinorthis sp. Hall and Clarke 1892
 Rhynchonellida - Rhynchotrematidae
Lepidocyclus sp.
Lepidocyclus sp. Wang 1949
Strophomenata
 Strophomenida - Strophomenidae
Strophomena sp.
Strophomena sp. Rafinesque and De Blainville 1824
Gastropoda
 Bellerophontida - Bucaniidae
Phragmolites sp.
Phragmolites sp. Conrad 1838 snail
Ostracoda
 Podocopida - Bairdiidae
Krausella sp.
Krausella sp. ostracod
 Beyrichicopida - Bolliidae
Dicranella sp.
 Hollinocopida - Tetradellidae
Ceratopsis sp., ? Tetradella sp.
Ceratopsis sp. Ulrich 1894 ostracod
? Tetradella sp. Ulrich 1890 ostracod
Trilobita
 Asaphida - Asaphidae
Anataphrus sp.
Anataphrus sp. Whittington 1954 trilobite
 Asaphida - Remopleurididae
Hypodicranotus sp.
Hypodicranotus sp. Whittington 1952 trilobite
 Lichida - Lichidae
Hemiarges sp.
Hemiarges sp. Gürich 1901 trilobite
 Phacopida - Pterygometopidae
Calyptaulax sp.
Calyptaulax sp. Cooper 1930 trilobite
 Phacopida - Encrinuridae
Cybeloides sp.
Cybeloides sp. Slocum 1913 trilobite
 Phacopida - Cheiruridae
Sphaerocoryphe sp., Sphaerexochus sp., "Ceraurus cf. numitor" = Borealaspis numitor, Ceraurus sp., Acanthoparypha sp., Holia sp., Ceraurinella sp., "Remipyga cf. daedalus" = Ceraurinus daedalus, "Remipyga sp." = Ceraurinus
Sphaerocoryphe sp. Angelin 1854 trilobite
Sphaerexochus sp. Beyrich 1845 trilobite
"Ceraurus cf. numitor" = Borealaspis numitor Billings 1866 trilobite
"Ceraurus" cf. numitor
Ceraurus sp. Green 1832 trilobite
Ceraurus sp. and "Ceraurus" sp.
Acanthoparypha sp. Whittington and Evitt 1953 trilobite
Holia sp. Bradley 1930 trilobite
Ceraurinella sp. Cooper 1953 trilobite
"Remipyga cf. daedalus" = Ceraurinus daedalus Cox 1933 trilobite
Remipyga cf. daedatus
"Remipyga sp." = Ceraurinus Barton 1913 trilobite
 Proetida - Dimeropygidae
Dimeropyge sp.
Dimeropyge sp. Opik 1937 trilobite