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: deep subtidal 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 26034: authorized by Michael Foote, entered by Michael Foote on 01.10.2002
Creative Commons license: CC BY (attribution)
Taxonomic list
Trilobita | |
Sphaerexochus dimorphus1, Protocerauroides lanei1, Youngia steineri1, "Youngia brennardi" = Parayoungia brennardi1
| |
Rhynchonellata | |
Spirinella struszi2 Zhang 1989 | |
Whitfieldella sulcatina2 Jin et al. 1993
Whitfieldella nitida2 Hall 1843 | |
Caryogyps grayi2 Zhang 1989 | |
Hesperorthis avalanchensis2 Jin and Chatterton 1997 | |
Plectatrypa savagei2 Zhang 1989 |