Also known as B. alticornis type site

Where: Jefferson County, Colorado (39.7° N, 105.0° W: paleocoordinates 46.5° N, 81.7° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: Denver Formation, Maastrichtian (70.6 - 65.5 Ma)

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; white sandstone

Size class: macrofossils

Collected by G. Cannon, W. Cross in 1887; reposited in the USNM

Collection methods: quarrying, mechanical,

Primary reference: O. C. Marsh. 1887. Notice of new fossil mammals. American Journal of Science 34(202):323-331 [M. Carrano/M. Carrano/M. Carrano] more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 46139: authorized by Matt Carrano, entered by Matt Carrano on 04.01.2005