Where: Northwest Territories, Canada (61.5° N, 124.9° W: paleocoordinates 6.4° N, 58.0° 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
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 25313: authorized by Steven Holland, entered by Tori Hanson on 08.09.2002
Creative Commons license: CC BY (attribution)
Taxonomic list
Anthozoa | |
Catenipora sp. Lamarck 1816 tabulate coral | |
Streptelasma sp. Hall 1847 horn coral | |
Gastropoda | |
Phragmolites sp. Conrad 1838 snail | |
Strophomenata | |
"Thaerodonta sp." = Eochonetes
"Thaerodonta sp." = Eochonetes Reed 1917 | |
Strophomena sp. Rafinesque and De Blainville 1824 | |
Rhynchonellata | |
Dinorthis sp. Hall and Clarke 1892 | |
Diceromyonia sp. Wang 1949 | |
? Cyclospira sp. Hall and Clarke 1893 | |
Lepidocyclus sp. Wang 1949 | |
Trilobita | |
Hypodicranotus sp. Whittington 1952 trilobite | |
Anataphrus sp. Whittington 1954 trilobite | |
Hemiarges sp. Gürich 1901 trilobite | |
Dimeropyge sp. Opik 1937 trilobite | |
Dolichoharpes sp. Whittington 1949 trilobite | |
Calyptaulax sp. Cooper 1930 trilobite
Chasmops sp. M'Coy 1849 trilobite | |
Cybeloides sp. Slocum 1913 trilobite | |
Acanthoparypha sp., Ceraurus sp., Sphaerexochus sp., "Ceraurus cf. numitor" = Borealaspis numitor, Holia sp., Sphaerocoryphe sp., Ceraurinella sp., "Remipyga sp." = Ceraurinus, "Remipyga cf. daedalus" = Ceraurinus daedalus
Acanthoparypha sp. Whittington and Evitt 1953 trilobite
Sphaerexochus sp. Beyrich 1845 trilobite
Holia sp. Bradley 1930 trilobite
Sphaerocoryphe sp. Angelin 1854 trilobite
Ceraurinella sp. Cooper 1953 trilobite
"Remipyga sp." = Ceraurinus Barton 1913 trilobite
"Remipyga cf. daedalus" = Ceraurinus daedalus Cox 1933 trilobite | |
Ostracoda | |
Ceratopsis sp. Ulrich 1894 ostracod
? Tetradella sp. Ulrich 1890 ostracod | |
Dicranella sp. ostracod | |
Krausella sp. ostracod |