Locality 40, unit 56 (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)

• 12 foot thickness

• group of beds-level stratigraphic resolution

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

• Limestone; in part argillaceous and crinoidal, medium light-grey to medium-grey, weathering similar and greyish green; thick-bedded, blocky, hard, dense, mixed sublithographic and coarsely 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 188787: authorized by Melanie Hopkins, entered by Melanie Hopkins on 18.09.2017

Creative Commons license: CC BY (attribution)

Taxonomic list

Trilobita
 Phacopida - Encrinuridae
Encrinurus sp. Emmrich 1844 trilobite
Strophomenata
 Orthotetida - Schuchertellidae
Gastropoda
 Euomphalina - Platyceratidae
Cyclonema sp. Hall 1852 snail
Cephalopoda
  -
Cephalopoda indet. Cuvier 1797