Avaceratops

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Quick Facts
NameAvaceratops
Diet
Weight318 kilograms
Length2.3 meters
Height1.3 meters
Period
Avaceratops
Human

Avaceratops was a small ceratopsian herbivorous dinosaur from the Late Cretaceous of North America about 80 to 75 million years ago. A single skeleton was found in 1981 in the Judith River Formation of Montana. It was named in honor of Ava Cole by Peter Dodson. 

It had a solid fringe at the back of the skull and a short, deep snout and a thick, powerful lower jaw. It was considered a small species compared to most other ceratopsian dinosaurs. It was a herbivore that probably ate low vegetation, which would have been mostly on ferns, cycads and low-growing conifers.

Avaceratops lived alongside hadrosaurs, pachycephalosaurs, ankylosaurs, hypsilophonts, dromaeosaurs, crocodiles, turtles, champsosaurs and small mammals. Avaceratops was about 2.3 meters long.

What does the name Avaceratops mean?

Avaceratops derives from the ancient Greek for "horned face".

When did Avaceratops live?

Avaceratops was a small ceratopsian herbivorous dinosaur from the Late Cretaceous of North America about 80 to 75 million years ago. 

Who found the Avaceratops?

Avaceratops was unearthed in 1981 by fossil dealer Eddie Cole in Montana's Judith River Formation on the Careless Creek Ranch land owned by rancher Arthur J. Lammers.

What did Avaceratops eat?

Avaceratops was a herbivore that probably ate low vegetation, which would have been mostly ferns, cycads and low-growing conifers.

Where did they live?

When did they live?

What was your diet?

Who discovered them?

What kind of dinosaurs are they?

What type of species are they?

  • Dodson, P. (1986). "Avaceratops lammersi: a new ceratopsid from the Judith River Formation of Montana.". Proceedings of the Academy of Natural Sciences of Philadelphia 138 (2): 305-317. 
  • Penkalski, P. & Dodson, P. (1999). "The morphology and systematics of Avaceratopsa primitive horned dinosaur from the Judith River Formation (Late Campanian) of Montana, with the description of a second skull". Journal of Vertebrate Paleontology 19 (4): 692-711. doi:10.1080/02724634.1999.10011182. 
  • Paul, G.S., 2010, The Princeton Field Guide to DinosaursPrinceton University Press p. 264.
  • "Avaceratops." In: Dodson, Peter & Britt, Brooks & Carpenter, Kenneth & Forster, Catherine A. & Gillette, David D. & Norell, Mark A. & Olshevsky, George & Parrish, J. Michael & Weishampel, David B. The Age of Dinosaurs. Publications International, LTD. p. 129. ISBN 0-7853-0443-6.
  • Dodson, P. (1996). The Horned Dinosaurs. Princeton University PressPrinceton, New Jersey. ISBN 0-691-05900-4. 
  • Olshevsky, G., 1991, A revision of the parainfraclass Archosauria Cope, 1869, excluding the advanced Crocodylia. Mesozoic Meanderings 2 196 pp
  • Lehman, T.M., 1990, "The ceratopsian subfamily Chasmosaurinae: sexual dimorphism and systematics". In: K. Carpenter and P. J. Currie (eds.), Dinosaur Systematics: Perspectives and Approaches, Cambridge University Press, Cambridge pp 211-229
  • Penkalski, P.G., 1993, "The morphology of Avaceratops lammersia primitive ceratopsid from the Campanian of Montana". Journal of Vertebrate Paleontology 13(3, suppl.): 52A
  • Ryan, M.J.; Holmes, R.; Mallon, J.; Loewen, M.; Evans, D.C.. (2017). "A basal ceratopsid (Centrosaurinae: Nasutoceratopsini) from the Oldman Formation (Campanian) of Alberta, Canada.". Canadian Journal of Earth Sciences 54. doi:10.1139/cjes-2016-0110. 
  • Sampson, S. D.; Lund, E. K.; Loewen, M. A.; Farke, A. A.; Clayton, K. E. (2013). "A remarkable short-snouted horned dinosaur from the Late Cretaceous (late Campanian) of southern Laramidia". Proceedings of the Royal Society B: Biological Sciences 280 (1766): 20131186. doi:10.1098/rspb.2013.1186.  Full text of the article
geological time 3

Fun Facts

  • Avaceratops derived from the ancient Greek for "horn-faced".
  • Avaceratops was unearthed in 1981 by fossil dealer Eddie Cole.
  • It was a herbivore.
  • It had a solid ornament on the back of the skull.

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