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)
• 2 foot thickness
• group of beds-level stratigraphic resolution
Environment/lithology: marine; lithified, gray, argillaceous lime mudstone
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 188789: authorized by Melanie Hopkins, entered by Melanie Hopkins on 18.09.2017
Creative Commons license: CC BY (attribution)
Taxonomic list
Chlorophyceae | |
Ischadites sp. Eichwald 1861 | |
Gastropoda | |
"Cyclonema aff. decorum" = Cyclonema decora
"Cyclonema aff. decorum" = Cyclonema decora Billings 1866 snail | |
Rhynchonellata | |
"Atrypella cf. schrocki" = Atrypoidea, Atrypella cf. scheii
"Atrypella cf. schrocki" = Atrypoidea
Atrypella cf. scheii Holtedahl 1914 | |
Delthyris sp. Dalman 1828 | |
Nucleospira "sp. A" Hall 1859 | |
Camarotoechia "sp. C" Hall and Clarke 1893 | |
Stenolaemata | |
Fenestella sp. Lonsdale 1839 | |
Trilobita | |
Encrinurus "sp. A" Emmrich 1844 trilobite
Encrinurus sp. Emmrich 1844 trilobite |