Where: Manitoba, Canada (50.1° N, 97.2° W: paleocoordinates 11.6° S, 57.6° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Gunn Member (Stony Mountain Formation), Richmondian (449.6 - 445.5 Ma)

• On the basis of conodonts, Ethington and Furnish (1960) correlated the lower Stony Mountain Formation to the upper part of the Bighorn Formation of Wyoming, the upper part of the Maquoketa Formation oflowa, and the Vaureal Formation of Anticosti Island, Quebec. Although these authors suggested a Maysvillian to early Richmondian age for this suite of strata, it is now widely accepted that these stratigraphic units are largely mid-late Richmondian in age.

• member-level stratigraphic resolution

Environment/lithology: poorly lithified, bioturbated, red, argillaceous wackestone and poorly lithified, bioturbated, argillaceous packstone

Size class: macrofossils

Reposited in the GSC

Primary reference: J. Jin and R.-b. Zhan. 2001. Late Ordovician Articulate Brachiopods from the Red River and Stony Mountain Formations, Southern Manitoba. 1-117 [P. Wagner/P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 166393: authorized by Pete Wagner, entered by Pete Wagner on 11.02.2015

Creative Commons license: CC BY (attribution)