Where: Alberta, Canada (49.3° N, 112.2° W: paleocoordinates 56.8° N, 77.8° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Oldman Formation (Belly River Group), Late/Upper Campanian (83.5 - 70.6 Ma)

• Found in the uppermost 100 m of the 650 m thick formation.

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; gray, green mudstone

Size class: macrofossils

Collected in 1987, 1989, 1995; reposited in the TMP

Collection methods: quarrying, surface (float), surface (in situ),

• embryonic material

Primary reference: J. R. Horner and P. J. Currie. 1994. Embryonic and neonatal morphology and ontogeny of a new species of Hypacrosaurus (Ornithischia, Lambeosauridae) from Montana and Alberta. In K. Carpenter, K. F. Hirsch, and J. R. Horner (eds.), Dinosaur Eggs and Babies, Cambridge University Press, Cambridge 312-336 [A. Behrensmeyer/M. Carrano/M. Carrano]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 53050: authorized by Matthew Carrano, entered by Kaitlin Maguire on 01.09.2005, edited by Matthew Carrano and Albert Garcia Selles

Creative Commons license: CC BY (attribution)