Where: Nunavut, Canada (78.3° N, 85.9° W: paleocoordinates 36.8° N, 2.9° E)
• coordinate stated in text
• outcrop-level geographic resolution
When: Van Hauen Formation, Roadian (272.3 - 268.8 Ma)
• At the time, an unnamed formation considered to be equivalent to the Assistance Formation. One specimen comes from 400 feet above the base of the formation; the other from talus presumably from the same horizon.
• group of beds-level stratigraphic resolution
Environment/lithology: deep-water; lithified, black siltstone
Size class: macrofossils
Collected by C. Johnson, F. George in 1969; reposited in the GSC
Primary reference: W. W. Nassichuk and C. Spinosa. 1970. Helicoprion sp., a Permian elasmobranch from Ellesmere Island, Canadian Arctic. Journal of Paleontology 44:1130-1132 [M. Clapham/M. Clapham]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 152126: authorized by Matthew Clapham, entered by Matthew Clapham on 08.11.2013
Creative Commons license: CC BY (attribution)
Taxonomic list
Chondrichthyes | |
Helicoprion davisii Woodward 1886 chimaera |