File:Achelousaurus holotype (1).jpg

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Summary

Description

Achelousaurus horneri skull, collected in Glacier County, Montana, at the Museum of the Rockies in Bozeman, Montana.

The Ceratopsidae are those dinosaurs with head frills. There are three large subgroups of Ceratopsidae: Centrosaurinae, Ceratopsinae, and Chasmosaurinae. The Triceratopsini are a "tribe" of the Chasmosaurinae -- a genus so vast that it gets the special name "tribe". The Pachyrhinosaurini are a "tribe" within the Centrosaurinae.

Achelousaurus is a genus within the Pachyrhinosaurini. So far, only three skulls and some limited skeletal remains have been collected anywhere in the world -- and all of them in Montana. Their bony frills are quite similar to the Styracosaurus albertensis, although their other skull features (such as big bony bosses on the nose and behind the eyes) are not.
Date
Source Achelousaurus horneri - Glacier County Montana - Museum of the Rockies - 2013-07-08
Author Tim Evanson from Washington, D.C., United States of America

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current05:05, 1 April 2014Thumbnail for version as of 05:05, 1 April 20142,539 × 2,706 (6.41 MB)Cropbotupload cropped version, operated by User:FunkMonk. Summary: cropped
11:33, 21 July 2013Thumbnail for version as of 11:33, 21 July 20132,899 × 3,000 (7.43 MB)File Upload Bot (Magnus Manske)Transferred from Flickr by User:FunkMonk using flickr2commons

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