A new elasmosaurid (Sauropterygia: Plesiosauria) from the non-marine to paralic Dinosaur Park Formation of southern Alberta, Canada

by James A. Campbell, Mark T. Mitchell, Michael J. Ryan, Jason S. Anderson
Published 2021-02-01

A Re-Evaluation of the Chasmosaurine Ceratopsid Genus Chasmosaurus (Dinosauria: Ornithischia) from the Upper Cretaceous (Campanian) Dinosaur Park Formation of Western Canada.

by James A Campbell, Michael J Ryan, Robert B Holmes, Claudia J Schröder-Adams
Published 2016-01-01

New insights into chasmosaurine (Dinosauria: Ceratopsidae) skulls from the Upper Cretaceous (Campanian) of Alberta, and an update on the distribution of accessory frill fenestrae i...

by James A. Campbell, Michael J. Ryan, Claudia J. Schröder-Adams, David C. Evans, Robert B. Holmes
Published 2018-07-01