3 miles west of Buffalo Lake (Cretaceous of the United States)

Also known as Blackfeet Indian Reservation, Montanoceratops

Where: Glacier County, Montana (48.9° N, 112.7° W: paleocoordinates 56.7° N, 85.9° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: St. Mary River Formation, Early/Lower Maastrichtian (70.6 - 66.0 Ma)

• lower part of St. Mary River Fm.

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; lithology not reported

Size class: macrofossils

Collected by B. Brown & P. Kaisen in 1916; reposited in the AMNH

Collection methods: quarrying, mechanical,

Primary reference: H. F. Osborn. 1917. Extinct vertebrates. Forty-Eighth Annual Report of the American Museum of Natural History for the Year 1916 81-83 [M. Carrano/M. Carrano/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 55266: authorized by Matthew Carrano, entered by Matthew Carrano on 04.10.2005

Creative Commons license: CC BY (attribution)

Taxonomic list

 Neornithischia - Leptoceratopsidae
"Leptoceratops cerorhynchus n. sp." = Montanoceratops cerorhynchus
"Leptoceratops cerorhynchus n. sp." = Montanoceratops cerorhynchus Brown and Schlaikjer 1942 leptoceratopsid
"a dwarf type of horned dinosaur"