Where: Canada (69.5° N, 127.0° W: paleocoordinates 78.0° N, 68.0° W)

When: Mason River Formation, Campanian (83.5 - 70.6 Ma)

Environment/lithology: offshore; shale

Primary reference: P. M. Tapia and D. M. Harwood. 2002. Upper Cretaceous diatom biostratigraphy of the Arctic archipelago and northern continental margin, Canada. Micropaleontology 48(4):303-342 [C. Cervato/C. Cervato] more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 57622: authorized by Cinzia Cervato, entered by Cinzia Cervato on 13.12.2005