Where: Northwest Territories, Canada (62.4° N, 127.0° W: paleocoordinates 7.9° N, 52.9° W)
• coordinate estimated from map
• outcrop-level geographic resolution
When: Pterospathodus amorphognathoides zone, Whittaker Formation, Llandovery to Llandovery (443.4 - 427.4 Ma)
• Zonation based on conodonts present in AV sections 1, 2, and 4. (AV 3 and DR sections correlated with these on basis of trilobite faunal assemblages.)
• group of beds-level stratigraphic resolution
Environment/lithology: offshore shelf; argillaceous limestone and calcareous shale
•SEP environmental call based on given information
Preservation: replaced with silica
Primary reference: B. D. E. Chatterton and D. G. Perry. 1983. Silicified Silurian odontopleurid trilobites from the Mackenzie Mountains. Palaeontographica Canadiana 1:1-55 [M. Foote/M. Foote/M. Foote]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 26047: authorized by Michael Foote, entered by Michael Foote on 01.10.2002
Creative Commons license: CC BY (attribution)
Taxonomic list
Trilobita | |
Youngia steineri, Protocerauroides lanei, "Youngia brennardi" = Parayoungia brennardi, Sphaerexochus dimorphus, Hadromeros scotti
Youngia steineri Chatterton and Perry 1984 trilobite
Protocerauroides lanei trilobite
"Youngia brennardi" = Parayoungia brennardi Chatterton and Perry 1984 trilobite
Sphaerexochus dimorphus Whittington and Evitt 1953 trilobite
Hadromeros scotti trilobite | |