Where: Nunavut, Canada (75.8° N, 108.6° W: paleocoordinates 39.1° N, 3.6° W)
• coordinate stated in text
• outcrop-level geographic resolution
When: Assistance Formation, Roadian (272.3 - 268.8 Ma)
• 20 feet below top of formation.
•Assistance Formation is Roadian in age according to Anfinson et al. (2016).
• bed-level stratigraphic resolution
Environment/lithology: coastal; lithified, glauconitic, gray, green 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 90234: authorized by Matthew Clapham, entered by Matthew Clapham on 14.07.2009
Creative Commons license: CC BY (attribution)
Taxonomic list
Chondrichthyes | |
Helicoprion davisii Woodward 1886 chimaera | |
Cephalopoda | |
Sverdrupites amundseni n. sp.
Sverdrupites amundseni n. sp. Nassichuk 1970 ammonite | |
Daubichites fortieri Harker 1960 ammonite |