Where: Northwest Territories, Canada (62.4° N, 127.0° W: paleocoordinates 9.0° N, 54.0° W)
• coordinate estimated from map
• outcrop-level geographic resolution
When: Pterospathodus celloni zone, Whittaker Formation, Llandovery (443.4 - 433.4 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 26036: authorized by Michael Foote, entered by Michael Foote on 01.10.2002, edited by Melanie Hopkins
Creative Commons license: CC BY (attribution)
Taxonomic list
unclassified | |
Songkaia smithi n. sp.1
Songkaia smithi n. sp.1 | |
Rhynchonellata | |
Dolerorthis cf. plicata5 de Sowerby and Murchison 1839 | |
Epitomyonia sekwiensis5 Lenz 1977 | |
Strophomenata | |
Jonesea undulata5 Jin and Chatterton 1997 | |
Leptellina (Merciella) mackenziensis5 Jin and Chatterton 1997 | |
Acaretyrricula tenuiguttae5 Jin and Chatterton 1997 | |
Trilobita | |
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Ceratocephala avalanchensis, "Acidaspis (Dalaspis) drzymlai" = Dalaspis, Leonaspis beni, Stelckaspis tuberculosa, Stelckaspis gingiva, Stelckaspis warreni
Ceratocephala avalanchensis trilobite
"Acidaspis (Dalaspis) drzymlai" = Dalaspis trilobite
Leonaspis beni trilobite
Stelckaspis tuberculosa trilobite
Stelckaspis gingiva trilobite
Stelckaspis warreni trilobite | |
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