Where: Garfield County, Montana (47.6° N, 107.1° W: paleocoordinates 54.6° N, 80.4° W)

• coordinate based on unpublished field data

• small collection-level geographic resolution

When: Hell Creek Formation, Maastrichtian (72.1 - 66.0 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: terrestrial; medium-grained, ferruginous, gray, carbonaceous siltstone

Size classes: macrofossils, mesofossils

Collected by H. Garbani in 1987; reposited in the UCMP

Collection methods: quarrying, mechanical,

• collected by Harley J. Garbani

Primary reference: M. B. Goodwin and J. R. Horner. 1997. Morphological variation and ontogeny in the skull of Triceratops. Journal of Vertebrate Paleontology 17(3, suppl.):49A [M. Carrano/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 55353: authorized by Matthew Carrano, entered by Matthew Carrano on 11.10.2005, edited by Kaitlin Maguire

Creative Commons license: CC BY (attribution)