Where: Alberta, Canada (51.5° N, 116.2° W: paleocoordinates 2.7° S, 73.0° W)
• coordinate estimated from map
• local area-level geographic resolution
When: basal silty Member (Survey Peak Formation), Tremadoc (486.5 - 477.7 Ma)
• Base of Survey Peak Fm. in Basal Silty Member
• group of beds-level stratigraphic resolution
Environment/lithology: deep subtidal; lithified, calcareous shale and lithified, stromatolitic, intraclastic limestone
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 54122: authorized by Shanan Peters, entered by Shanan Peters on 23.09.2005
Creative Commons license: CC BY (attribution)
Taxonomic list
Trilobita | |
Jujuyaspis borealis Kobayashi 1955 trilobite | |
Symphysurina eugenia trilobite | |
Clelandia albertensis trilobite
Clelandia texana trilobite |