4.15" Ceratopsian Frill Piece (Judith River)

This piece was found along with larger more complete sections of frill, it Would be from the area circled in the picture.

Size: 4.15" L x 2.23" W

Species: Ceratopsian- most likely centrosaurine

Age: late cretaceous- 75.3-79 MYA

Location Found: Judith River Formation, Blaine County, northern Montana, USA

The Judith River ceratopsians primarily belong to two major subfamilies: Centrosaurines (typically recognized by large nose horns, small brow horns, and complex frill spikes) and Chasmosaurines (known for long brow horns and large, open frills)