Walcott Loc. 63d. Ptarmigan Peak (Cambrian of Canada)
Where: Alberta, Canada (51.5° N, 116.1° W)
• Paleocoordinates: 37.4° N, 120.0° W (Wright 2013)
When: Albertella trilobite zone, Ptarmigan Formation, Delamaran (511.2 - 506.5 Ma)
• formation-level stratigraphic resolution
Environment/lithology: argillaceous limestone
• dark, thin-bedded finely arenaceous limestone
Size class: macrofossils
Reposited in the USNM
Primary reference: C. D. Walcott. 1917. The Albertella fauna in British Columbia and Montana. Smithsonian Miscellaneous Collections 67(2):9-59 [P. Wagner/P. Wagner]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 225274: authorized by Pete Wagner, entered by Pete Wagner on 01.05.2022
Creative Commons license: CC0 (CC0)
Taxonomic list
Show authors, comments, and common names
| Trilobita | |
"Crepicephalus chares n. sp." = Kochiella chares
"Crepicephalus chares n. sp." = Kochiella chares Walcott 1917 trilobite | |
"? Ptychoparia cilles n. sp." = Periomma cilles
"? Ptychoparia cilles n. sp." = Periomma cilles Walcott 1917 trilobite | |