Locality 1, unit 4 (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 18.9 feet thick

• group of beds-level stratigraphic resolution

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

• Limestone; medium dark-grey, weathering to mottled greys, very thin-bedded, hard, dense, finely crystalline; siltstone partings common

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 188863: authorized by Melanie Hopkins, entered by Melanie Hopkins on 19.09.2017

Creative Commons license: CC BY (attribution)

Taxonomic list

Ostracoda indet. Latreille 1802 ostracod
 Athyridida - Meristidae
? Merista sp. Suess 1851
 Pentamerida - Subrianidae
 Atrypida - Lissatrypidae
Atrypella scheii Holtedahl 1914
 Actinocerida - Armenoceratidae
 Pseudorthocerida - Spyroceratidae
Spyroceras "sp. A" Hyatt 1884
 Favositida - Favositidae
Favosites forbesi tabulate coral
Favosites cf. hisingeri Milne-Edwards and Haime 1851 tabulate coral