Locality 38, unit 3 (Silurian of Canada)

Where: Northwest Territories, Canada (74.8° N, 93.4° W: paleocoordinates 2.0° N, 31.9° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: C Member (Read Bay Formation), Ludlow (427.4 - 423.0 Ma)

• unit is 12 feet thick

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified, gray lime mudstone

• Limestone; light grey to medium grey weathering similar, very thin-bedded, flaggy, hard, dense, sublithographic to very 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 188897: authorized by Melanie Hopkins, entered by Melanie Hopkins on 20.09.2017

Creative Commons license: CC BY (attribution)

Taxonomic list

 Orthotetida - Chilidiopsidae
? Fardenia "sp. A" Lamont 1935
? Fardenia "sp. B" Lamont 1935
 Spiriferida - Delthyrididae
 Atrypida - Atrypidae
? Atrypa sp. Dalman 1828
 Orthocerida - Orthoceratidae
Michelinoceras sp. Foerste 1932
 Trepostomata - Mesotrypidae