Locality 1, unit 2 (Silurian to of Canada)

Where: Northwest Territories, Canada (74.7° N, 94.8° W: paleocoordinates 3.1° N, 33.5° 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 6 feet thick

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified, gray, argillaceous lime mudstone

• Argillaceous limestone; medium dark-grey, weathering light grey, very thin-bedded, hard, dense, sublithographic to finely crystalline

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: biostratigraphic analysis

PaleoDB collection 188865: authorized by Melanie Hopkins, entered by Melanie Hopkins on 19.09.2017

Creative Commons license: CC BY (attribution)

Taxonomic list

 Athyridida - Meristellidae
? Hindella "sp. A" Davidson 1882
 Spiriferida - Reticulariidae
? Alaskospira sp. Kirk and Amsden 1952
 Pentamerida - Pentameridae
"Conchidium knighti" = Kirkidium knighti Sowerby 1813
 Rhynchonellida - Camarotoechiidae
Camarotoechia sp. Hall and Clarke 1893
 Orthida - Orthidae
 Orthocerida - Orthoceratidae
? Michelinoceras sp. Foerste 1932
 Actinocerida - Armenoceratidae
 Pseudorthocerida - Spyroceratidae
Spyroceras "sp. A" Hyatt 1884
 Favositida - Favositidae
Favosites cf. senex tabulate coral