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
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 25314: authorized by Steven Holland, entered by Tori Hanson on 08.09.2002
Creative Commons license: CC BY (attribution)
Taxonomic list
unclassified | |
Anthozoa | |
Catenipora sp. Lamarck 1816 tabulate coral | |
Streptelasma sp. Hall 1847 horn coral | |
Rhynchonellata | |
? Cyclospira sp. Hall and Clarke 1893 | |
Diceromyonia sp. Wang 1949 | |
Dinorthis sp. Hall and Clarke 1892 | |
Lepidocyclus sp. Wang 1949 | |
Strophomenata | |
Strophomena sp. Rafinesque and De Blainville 1824 | |
Gastropoda | |
Phragmolites sp. Conrad 1838 snail | |
Ostracoda | |
Krausella sp. ostracod | |
Dicranella sp. ostracod | |
Ceratopsis sp. Ulrich 1894 ostracod
? Tetradella sp. Ulrich 1890 ostracod | |
Trilobita | |
Anataphrus sp. Whittington 1954 trilobite | |
Hypodicranotus sp. Whittington 1952 trilobite | |
Hemiarges sp. Gürich 1901 trilobite | |
Calyptaulax sp. Cooper 1930 trilobite
Chasmops sp. M'Coy 1849 trilobite | |
Cybeloides sp. Slocum 1913 trilobite | |
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
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 sp." = Ceraurinus Barton 1913 trilobite | |
Dimeropyge sp. Opik 1937 trilobite |