Locality 50 (Silurian to of Canada)

Where: Northwest Territories, Canada (74.8° N, 93.5° W: paleocoordinates 5.3° N, 35.9° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Allen Bay Formation, Llandovery to Llandovery (443.4 - 427.4 Ma)

• bed-level stratigraphic resolution

Environment/lithology: marine; lithified, gray, argillaceous limestone and calcareous shale

• thick-bedded dark grey argillaceous limestone and calcareous shale

Size class: macrofossils

Collected by R. Thorsteinsson in 1950-53

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 188782: authorized by Melanie Hopkins, entered by Melanie Hopkins on 18.09.2017

Creative Commons license: CC BY (attribution)

Taxonomic list

• Identified by A. E. Wilson
 Beyrichiacea - Zygobolbidae
Mastigobolbina sp. Ulrich and Bassler 1923 ostracod
 Palaeocopida - Beyrichiidae
? Kloedenia sp. Jones and Holl 1886 ostracod
Zygobeyrichia sp. Ulrich 1916 ostracod