Also known as Was: GSC locality 92316, Skoki Fm., Biozone J, Alberta, Canada - Dean 1989
Where: Alberta, Canada (52.9° N, 118.1° W: paleocoordinates 1.2° S, 69.9° W)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: J trilobite zone, Sikanni Chief Member (Skoki Formation), Blackhillsian (474.9 - 470.0 Ma)
• The deposits comprise detrital belts near the margin of Laurentia. Part of the Ordovician Ibex Series.
•
•Was Tremadoc, but J is Blackhillsian (PJW). Also, the conodont zones for Sikanni Chief (Jumudontus gananda and Tripodus laevis) both are younger than Zone J (Pseudocybele nasuta) according to Pyle & Barnes (2003). So, is this really Outram?
• group of beds-level stratigraphic resolution
Environment/lithology: marine; lithified, sandy dolomite
Size classes: macrofossils, mesofossils
Reposited in the GSC
• Brachiopods are mentioned to occur in the formation, but their placement and lower taxa names are not given. An index of A to M is used to designate Ordovician biozones (Ross, 1949, 1951a, p.27-29) for the Wilcox Pass Area.
Primary reference: W. T. Dean. 1989. Trilobites from the Survey Peak, Outram and Skoki Formations (Upper Cambrian-Lower Ordovician) at Wilcox Pass, Jasper National Park, Alberta). Geological Survey of Canada Bulletin (389)1-141 [M. Patzkowsky/P. Borkow/P. Borkow]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 10899: authorized by Mark Patzkowsky, entered by Phil Borkow on 05.07.2001
Creative Commons license: CC BY (attribution)
Taxonomic list
Trilobita | |
Benthamaspis diminutiva Hintze 1953 trilobite
Goniotelina brevis Hintze 1953 trilobite | |
"Ischyrotoma cf. caudanodosa" = Dimeropygiella caudanodosa
"Ischyrotoma cf. caudanodosa" = Dimeropygiella caudanodosa Ross 1951 trilobite | |
Carolinites genacinaca Ross 1951 trilobite | |
Cybelopsis speciosa trilobite | |
Presbynileus latifrons, "Ptyocephalus declevitus" = Kirkella declevita
Presbynileus latifrons Dean 1989 trilobite
"Ptyocephalus declevitus" = Kirkella declevita Ross 1951 trilobite |