sample of Chasmosaurus belli skulls; others are seen as valid species of Chasmosaurus or as separate genera. In 1933 Barnum Brown named Chasmosaurus kaiseni...

William Strain. This material was studied by Lehman in 1989 and named Chasmosaurus mariscalensis. It is known only from the holotype UTEP P.37.7.086 a partial...

Dinosaur Park Formation. It is sometimes included in the genus Chasmosaurus as Chasmosaurus irvinensis instead of being recognized as its own genus. In 2010...

Formation of Alberta, Canada, was assigned to Chasmosaurus russelli in 1940, but only to Chasmosaurus in 1995, as the lack of a neck frill prevented...

Utahceratops. Their clade was perhaps more derived than the earlier genus Chasmosaurus but more basal than Anchiceratops, the latter representing a line of...

lineages of chasmosaurines existed in the late Cretaceous: a northern "Chasmosaurus" lineage with a heart-shaped frill margin that flattens and curls over...

plants. 1927 A Chasmosaurus skeletal mount was created for the National Museum of Canada. It was the first skeletal mount of Chasmosaurus ever created and...

Restoration of four ceratopsids: top left – Triceratops, top right – Styracosaurus, bottom left – Anchiceratops, bottom right – Chasmosaurus....

Martino Zoltán Seress as Quint Ankylosaurus Brachiosaurus ("Brach") Chasmosaurus (incorrectly classified as a hadrosaur) Parasaurolophus ("Overlander"/Guard)...

diagrams of possible muscle attachments in the frills of Styracosaurus and Chasmosaurus, but did not subscribe to the idea that they completely filled in the...