Where: Alberta, Canada (51.5° N, 116.2° W: paleocoordinates 2.8° S, 75.6° W)
• coordinate estimated from map
• local area-level geographic resolution
When: Bison Creek Formation, Sunwaptan (498.5 - 485.4 Ma)
• approximately 80m above the base of the Bison Creek Formation; most fossiliferous in unit
• group of beds-level stratigraphic resolution
Environment/lithology: shallow subtidal; lithified, calcareous shale and lithified, intraclastic, shelly/skeletal grainstone
Size class: macrofossils
Primary reference: S. R. Westrop. 1986. Trilobites of the Upper Cambrian Sunwaptan Stage, southern Canadian Rocky Mountains, Alberta. Palaeontographica Canadiana 3:1-179 [S. Peters/S. Peters/U. Merkel]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 54091: authorized by Shanan Peters, entered by Shanan Peters on 22.09.2005
Creative Commons license: CC BY (attribution)
Taxonomic list
Trilobita | |
Pugionicauda paradoxa trilobite | |
? Triarthropsis sp. Ulrich 1931 trilobite | |
Chariocephalus whitfieldi Hall 1863 trilobite
Drumaspis idahoensis trilobite | |
Keithiella cf. depressa Rasetti 1944 trilobite
Ptychaspis sp. Hall 1863 trilobite
Ptychaspis cf. monsensis trilobite
Idiomesus granti trilobite | |
Wilbernia pero Walcott 1890 trilobite | |
Croixana ambigua trilobite
Croixana inflata trilobite
? Minkella sp. Lochmann and Hu 1959 trilobite
Minkella cf. modesta trilobite | |
Ellipsocephaloides silvestris trilobite
Ellipsocephaloides monsensis trilobite | |
Artiopoda | |
"Pseudagnostus josepha" = Pseudagnostus josephus
"Pseudagnostus josepha" = Pseudagnostus josephus Hall 1863 |