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OJOCERATOPS

a plant-eating chasmosaurine ceratopsian dinosaur from the Late Cretaceous of North America.
Pronunciation: o-jo-SEH-ruh-tops
Meaning: Ojo (Alamo) Horned Face
Author/s: Sullivan and Lucas (2010)
Synonyms: None known
First Discovery: New Mecxico, USA
Discovery Chart Position: #710

Ojoceratops fowleri

(Fowler's Ojo Alamo Horned Face)Etymology
Ojoceratops is derived from "ojo" (for the Ojo Alamo Formation where it was found) and the Greek "ceras" (horn) and "ops" (face).
The species epithet, fowleri, honours Ph.D. student Denver Fowler who found the holotype and many of the referred specimens.
Discovery
The first remains of Ojoceratops were discovered in the Naashoibito Member of the Ojo Alamo formation at SMP Locality 410b, Willow Wash, San Juan basin, New Mexico, by Denver Fowler in 2005.
The holotype (SMP VP-1865) is a cheek bone (left squasmosal). Many more skull fragments from the same general area were assigned to Ojoceratops, mainly because they shared a similar surface texture.
Estimations
Timeline:
Era: Mesozoic
Epoch: Late Cretaceous
Stage: Maastrichtian
Age range: 71-68.5 mya
Stats:
Est. max. length: 9 meters
Est. max. hip height: ?
Est. max. weight: 7 tons
Diet: Herbivore
References
• Sullivan RM and Lucas SG (2010) "A New Chasmosaurine from the Upper Cretaceous Ojo Alamo Formation (Naashoibito Member), San Juan Basin, New Mexico". Page 169-180 in Ryan, Chinnery-Allgeier and Eberth (eds.) "New Perspectives on Horned Dinosaurs: The Royal Tyrrell Museum Ceratopsian Symposium".
• Longrich NR (2011) "Titanoceratops ouranos, a giant horned dinosaur from the Late Campanian of New Mexico". Cretaceous Research, 32(3): 264-276. DOI: 10.1016/j.cretres.2010.12.007.
• Holtz TR Jr. (2011) "Dinosaurs: The Most Complete, Up-to-Date Encyclopedia for Dinosaur Lovers of All Ages".
• Jasinski SE, Sullivan RM and Lucas SG (2011) "Taxonomic composition of the Alamo Wash local fauna from the Upper Cretaceous Ojo Alamo Formation (Naashoibito Member) San Juan Basin, New Mexico". New Mexico Museum of Natural History and Science Bulletin, 53: 216–271.
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To cite this page:
Atkinson, L. "OJOCERATOPS :: from DinoChecker's dinosaur archive".
›. Web access: 07th Mar 2026.
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