GSC 97561, Rackla River (Triassic of Canada)

Where: Yukon, Canada (64.2° N, 134.1° W: paleocoordinates 39.9° N, 47.8° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Otuk Formation, Tuvalian (232.0 - 221.5 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified lithology not reported

Size class: macrofossils

Collected by E.T. Tozer party in 1980; reposited in the GSC

Primary reference: E. T. Tozer. 1994. Canadian Triassic Ammonoid Faunas. Geological Survey of Canada Bulletin 467:1-663 [A. McGowan/A. McGowan/A. McGowan]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 49745: authorized by Alistair McGowan, entered by Alistair McGowan on 24.04.2005

Creative Commons license: CC BY (attribution)

Taxonomic list

 Ceratitida - Trachyceratidae
Sirenites serotinus Tozer 1994 ceratite
 Ceratitida - Tropitidae
Acanthotropites racklaensis n. sp. Tozer 1994 ceratite
 Ceratitida - Aplococeratidae
Epiceratites yukonensis n. sp. Tozer 1994 ceratite