Big Muddy Valley Aspideretes Site (Paleocene of Canada)

Where: Saskatchewan, Canada (49.1° N, 104.9° W: paleocoordinates 55.0° N, 78.8° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Ravenscrag Formation, Puercan (66.0 - 63.3 Ma)

• no details given, but there is only one specimen, so bed-level scale is presumed

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; lithology not reported

Size class: macrofossils

Primary reference: L. S. Russell. 1974. Fauna and correlation of the Ravenscrag Formation (Paleocene) of southwestern Saskatchewan. Life Sciences Contributions, Royal Ontario Museum 102:1-53 [J. Alroy/J. Alroy/J. Alroy]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 22923: authorized by John Alroy, entered by John Alroy on 02.07.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

• specimen first described by Russell 1934
Reptilia
 Testudines - Trionychidae
Trionychinae indet. Gray 1825 softshell turtle
compared to A. subquadratus Lambe