Where: Alberta, Canada (52.0° N, 112.9° W: paleocoordinates 59.7° N, 84.4° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Morrin/Tolman Member (Horseshoe Canyon Formation), Early/Lower Maastrichtian (70.6 - 66.0 Ma)

• from Drumheller Marine Tongue, Unit 2

•

•Drumheller Marine Tongue section spans Morrin/Tolman contact zone and has been dated to 70.896+/0.048Ma. For revised age stratigraphy of the Horseshoe Canyon Formation, see Eberth and Braman 2012 and Eberth et al. 2020

• bed-level stratigraphic resolution

Environment/lithology: coastal; lithology not reported

Size class: mesofossils

Collected by Brinkman in 2003; reposited in the TMP

Collection methods: bulk, sieve,

Primary reference: D. W. Larson, D. B. Brinkman, and P. R. Bell. 2010. Faunal assemblages from the upper Horseshoe Canyon Formation, an early Maastrichtian cool-climate assemblage from Alberta, with special reference to the Albertosaurus sarcophagus bonebed. Canadian Journal of Earth Sciences 47:1159-1181 [M. Carrano/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 135739: authorized by Matthew Carrano, entered by Matthew Carrano on 06.11.2012

Creative Commons license: CC BY (attribution)