Where: Alberta, Canada (53.3° N, 111.6° W: paleocoordinates 60.5° N, 74.3° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Baculites gregoryensis ammonoid zone, Birch Lake Member, Middle Campanian (83.5 - 70.6 Ma)

• Baculites gregoryensis? zone in Hook & Cobban, 2017

• group of beds-level stratigraphic resolution

Environment/lithology: marine; sandstone

Size class: macrofossils

Collected by P.S. Warren

• Repository: University of Alberta

Primary reference: C. W. Cooke. 1953. American Upper Cretaceous Echinoidea. United States Geological Survey Professional Paper 254-A:1-44 [W. Kiessling/U. Merkel/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 197249: authorized by Matthew Clapham, entered by Matthew Clapham on 26.10.2018

Creative Commons license: CC BY (attribution)