Locality 40, unit 8 (Silurian to of Canada)

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 3 feet thick

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified, brown, gray packstone

• Limestone; fossil fragmental, brownish grey, weathering to mottled brownish black and yellowish grey, very thin-bedded, hard, dense, finely to medium 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: taxonomic analysis

PaleoDB collection 188836: authorized by Melanie Hopkins, entered by Melanie Hopkins on 19.09.2017

Creative Commons license: CC BY (attribution)

Taxonomic list

Rhynchonellata
 Atrypida - Lissatrypidae
"Atrypella sp." = Atrypoidea
"Atrypella sp." = Atrypoidea Mitchell and Dun 1920
Gastropoda
 Murchisoniina - Hormotomidae
Coelocaulus "sp. A" Oehlert and Oehlert 1888 snail
Coelocaulus "sp. B aff. longispira" Oehlert and Oehlert 1888 snail
Coelocaulus "sp. C" Oehlert and Oehlert 1888 snail