Big Muddy 23 (Paleocene of Canada)

Also known as McLearn's locality 23

Where: Saskatchewan, Canada (49.1° N, 104.9° W: paleocoordinates 54.5° N, 81.2° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Ravenscrag Formation, Paleocene (66.0 - 56.0 Ma)

• "Rich shell bed at base of buff, cliff-forming sandstone, above Willowbunch Member."

• member-level stratigraphic resolution

Environment/lithology: terrestrial; lithified, shelly/skeletal, yellow sandstone

• "Rich shell bed at base of buff, cliff-forming sandstone"

Size classes: macrofossils, mesofossils

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 22921: authorized by John Alroy, entered by John Alroy on 02.07.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

Gastropoda
 Heterostropha - Physidae
Physa canadensis snail
Whiteaves 1885; physid
 Architaenioglossa - Viviparidae