Genera

Chasmosaurus

7월 7, 2025 - By user

Chasmosaurus

“chasm (skull opening)
lizard”

[ Measurements | Time | Place | Remains | Images ]

CLASSIFICATION

Chasmosaurus
Lambe, 1914TYPE SPECIES:
C. belli (Lambe, 1902) (originally Monoclonius)

OTHER SPECIES:
C. canadensis (Lambe, 1902) (originally Monoclonius) “chasm (skull opening)
lizard from Canada”
C. mariscalensis Lehman, 1989
C. russelli C. M. Sternberg, 1940

MISASSIGNED SPECIES:
C. brevirostris Kaiseni, 1933 “short-nosed chasm (skull opening)
lizard” == C. belli
C. kaiseni Brown, 1933 == C. canadensis
C. recurvicornis (Cope, 1889) [nomen dubium] (originally Monoclonius) “chasm (skull opening)
lizard with a
recurved horn” = Monoclonius recurvicornis
C. sternbergi (Osborn, 1923) (originally Pentaceratops) = Pentaceratops sternbergi

Animalia Vertebrata Tetrapoda Sauropsida Archosauromorpha Ornithodira Dinosauria Ornithischia Ceratopsia Coronosauria Ceratopsinae

MEASUREMENTS

LENGTH: 5 m to 8 m

MASS: ?1.5 tonnes

see also: World Records

TIME

C. belli: Campanian
C. canadensis: Campanian
C. mariscalensis: Maastrichtian
C. russelli: Campanian

see also: Ages of the Mesozoic

PLACE

C. belli: Alberta
C. canadensis: Alberta
C. mariscalensis: Texas
C. russelli: Alberta

see also: Paleo-Maps

REMAINS

C. belli
8 skulls, skeleton
C. canadensis
4 skulls
C. mariscalensis
12 skulls, juvenile specimen
C. russelli
3 skulls

see also: Anatomy

IMAGES

ERIK C. OMTVEDT

Chasmosaur Hollow: Chasmosaurus belli trio in forest pass

Chasmosaurus belli in a gallop

A lone Chasmosaurus strides beside a pond.

SHIRAISHI MINEO

Chasmosaurus belli displays its frill.

A juvenile Chasmosaurus and a juvenile Parasaurolophus warily approach each other.

the elegant ceratopsian Chasmosaurus belli

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