Locality 48 (Ordovician of Canada)

Where: Northwest Territories, Canada (75.1° N, 94.1° W: paleocoordinates 1.5° N, 39.5° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Irene Bay Formation (Cornwallis Group), Caradocian (460.9 - 449.5 Ma)

• uppermost part of formation. (PJW: That should be Irene Bay)

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified lime mudstone

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 188776: authorized by Melanie Hopkins, entered by Melanie Hopkins on 18.09.2017

Creative Commons license: CC BY (attribution)

Taxonomic list

• Identified by Wilson, Sweet, and Miller
 Pseudorthocerida - Spyroceratidae
Spyroceras sp. Hyatt 1884
 Heliolitida - Halysitidae
Halysites sp. von Waldheim 1813 tabulate coral