Where: Nunavut, Canada (77.0° N, 95.4° W: paleocoordinates 37.5° N, 0.1° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Assistance Formation, Roadian (272.5 - 268.0 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: marine; poorly lithified sandstone

Size class: macrofossils

Primary reference: W. W. Nassichuk. 1970. Permian ammonoids from Devon and Melville Islands, Canadian Arctic Archipelago. Journal of Paleontology 44(1):77-97 [M. Clapham/M. Clapham] more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 115643: authorized by Matthew Clapham, entered by Matthew Clapham on 02.09.2011

Creative Commons license: CC BY-NC-ND (attribution-noncommercial-no derivatives)