Where: Pondera County, Montana (48.5° N, 112.4° W: paleocoordinates 56.0° N, 77.6° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Lower Member (Two Medicine Formation), Late/Upper Santonian to Late/Upper Santonian (85.8 - 70.6 Ma)

• lower part of formation

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; lithology not reported

Size class: macrofossils

Collected by B. Brown; reposited in the AMNH

Collection methods: quarrying, mechanical,

• also MOR

Primary reference: J. R. Horner. 1992. Cranial morphology of Prosaurolophus (Ornithischia: Hadrosauridae) with descriptions of two new hadrosaurid species and an evaluation of hadrosaurid phylogenetic relationships. Museum of the Rockies Occasional Paper 2:1-119 [M. Carrano/M. Carrano/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 47101: authorized by Matthew Carrano, entered by Matthew Carrano on 08.02.2005

Creative Commons license: CC BY (attribution)