Theropod Knob (Cretaceous of Canada)

Where: Alberta, Canada (52.0° N, 112.9° W: paleocoordinates 59.7° N, 84.5° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Scollard Formation, Late/Upper Maastrichtian (70.6 - 66.0 Ma)

• Lower 4m of formation, likely derived from an interval 1–2 m above the base of the Scollard Formation, part of an inclined heterolithic stratification deposit that overlies a lower interval of clean sandstone (all part of a single channel succession). Within the top of the 30n magnetochron and slightly younger than 67 Ma

• bed-level stratigraphic resolution

Environment/lithology: "channel"; sandstone

Size class: macrofossils

Preservation: replaced with hematite

Collected in 2004; reposited in the TMP

Collection methods: surface (in situ),

• McGill University palaeontology field course in the summer of 2004, southern edge of microsite

Primary reference: D. C. Evans, M. J. Vavrek, and H. C. E. Larsson. 2015. Pachycephalosaurid (Dinosauria: Ornithischia) cranial remains from the latest Cretaceous (Maastrichtian) Scollard Formation of Alberta, Canada. Paleobiodiversity and Paleoenvironments [P. Mannion/J. Tennant]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 168404: authorized by Philip Mannion, entered by Jonathan Tennant on 22.04.2015, edited by Philip Mannion

Creative Commons license: CC BY (attribution)

Taxonomic list

Reptilia
 Ornithischia -
cf. Pachycephalosaurus sp. Brown and Schlaikjer 1943 ornithischian
TMP 2004.300.0001, a largely complete, but superficially weathered, parietal
 Theropoda - Caenagnathidae
Caenagnathidae indet. Sternberg 1940 maniraptoran
TMP 1990.52.10, 2022.8.6 and 2022.8.7