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)
Taxonomic list
Actinopteri | |
| |
Cyclurus sp. Agassiz 1839 bowfin | |
Reptilia | |
Avialae indet. Gauthier 1986 avialan | |
| |
Tyrannosauridae indet. Osborn 1906 tyrannosaurid | |
| |
Ceratopsidae indet. Marsh 1888 ceratopsid | |
Hypacrosaurus altispinus Brown 1913 lambeosaurine | |
Chelydridae indet. Swainson 1839 turtle | |
Mammalia | |
Metatheria indet. metatherian | |
Amphibia | |
| |
Scapherpeton sp. Cope 1876 salamander | |
Opisthotriton sp. Auffenberg 1961 salamander |