GSC 53860, Section 116P-10, Richardson Mountains (Permian of Canada)

Where: Yukon, Canada (67.5° N, 136.5° W: paleocoordinates 36.8° N, 22.0° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Yakovlevia brachiopod zone, Sakmarian (295.5 - 290.1 Ma)

• Unnamed carbonate unit, 323 feet above angular unconformity that marks the top of the Devonian

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified siltstone

Size class: macrofossils

Primary reference: W. W. Nassichuk, W. M. Furnish, and B. F. Glenister. 1965. The Permian ammonoids of Arctic Canada. Geological Survey of Canada Bulletin 131:1-56 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 115714: authorized by Matthew Clapham, entered by Matthew Clapham on 03.09.2011

Creative Commons license: CC BY (attribution)

Taxonomic list

Strophomenata
 Productida - Productidae
Yakovlevia transversa1 Cooper 1957
Rhynchonellata
 Spiriferida - Spiriferellidae
Spiriferella saranae2 de Verneuil 1845
Cephalopoda
 Goniatitida - Metalegoceratidae
Metalegoceras crenatum n. sp. Nassichuk et al. 1965 ammonite