Where: Northwest Territories, Canada (74.8° N, 93.5° W: paleocoordinates 3.0° N, 33.2° W)
• coordinate estimated from map
• outcrop-level geographic resolution
When: A Member (Read Bay Formation), Wenlock to Wenlock (433.4 - 423.0 Ma)
• unit is 228 feet thick; fauna nearer to bottom than top of unit
• group of beds-level stratigraphic resolution
Environment/lithology: marine; lithified, gray, argillaceous lime mudstone and poorly lithified, gray shale
Size class: macrofossils
Collected by R. Thorsteinsson in 1950-53; reposited in the GSC
Collection methods: surface (in situ),
Primary reference: R. Thorsteinsson. 1958. Cornwallis and Little Cornwallis Islands, District of Franklin, Northwest Territories. Geological Survey of Canada Memoirs 294:1-134 [M. Hopkins/M. Hopkins/M. Hopkins]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 188804: authorized by Melanie Hopkins, entered by Melanie Hopkins on 19.09.2017
Creative Commons license: CC BY (attribution)
Taxonomic list
Strophomenata | |
? Brachyprion sp. Shaler 1865 | |
Rhynchonellata | |
Howellella "sp. A" Kozlowski 1946 | |
Atrypella cf. borealis Kirk and Amsden 1952
Atrypella scheii Holtedahl 1914 | |
? Onniella sp. Bancroft 1928 | |
Trilobita | |
Encrinurus sp. Emmrich 1844 trilobite |