Ojoceratops

Ojoceratops

Deuterostomia

Ojoceratops
Temporal range: Late Cretaceous, 70 Ma
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Skull reconstruction
Scientific classification e
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Superorder: Dinosauria
Order: †Ornithischia
Suborder: †Ceratopsia
Family: †Ceratopsidae
Subfamily: †Chasmosaurinae
Tribe: †Triceratopsini
Genus: †Ojoceratops
Sullivan & Lucas, 2010
Species: †O. fowleri
Sullivan & Lucas, 2010

Ojoceratops is a genus of ceratopsian dinosaur which lived in what is now New Mexico. Ojoceratops fossils have been recovered from strata of the Ojo Alamo Formation (Naashoibito Member), dating to the late Cretaceous period (probably early Maasrichtian age, 70 million years ago). The type species is Ojoceratops fowleri. It is very similar to its close relative Triceratops, though it is from an earlier time period and has a more squared-off frill.[1] Nick Longrich, in 2011, noted that the squared-off frill is also found in some true Triceratops specimens and that Ojoceratops is probably a junior synonym of Triceratops,[2] while Holtz (2010) noted that it is probably ancestral to Triceratops and possibly synonymous with the contemporary Eotriceratops.[3] It is estimated to have reached about 9 metres (30 ft) in length.[3]

Restoration

References

  1. ^ Robert M. Sullivan and Spencer G. Lucas, 2010, "A New Chasmosaurine (Ceratopsidae, Dinosauria) from the Upper Cretaceous Ojo Alamo Formation (Naashoibito Member), San Juan Basin, New Mexico", In: Ryan, M.J., Chinnery-Allgeier, B.J., and Eberth, D.A. (eds.) New Perspectives on Horned Dinosaurs: The Royal Tyrrell Museum Ceratopsian Symposium, Bloomington, Indiana University Press, 656 pp.
  2. ^ Nicholas R. Longrich (2011). "Titanoceratops ouranous, a giant horned dinosaur from the Late Campanian of New Mexico". Cretaceous Research in press. doi:10.1016/j.cretres.2010.12.007. http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6WD3-51TPVM1-1&_user=10&_coverDate=12%2F29%2F2010&_rdoc=1&_fmt=high&_orig=browse&_origin=browse&_zone=rslt_list_item&_srch=doc-info(%23toc%236755%239999%23999999999%2399999%23FLA%23display%23Articles)&_cdi=6755&_sort=d&_docanchor=&_ct=21&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=8f5e3845b1c44a1dc08c04b09952a44a&searchtype=a. 
  3. ^ a b Holtz, Thomas R. Jr. (2011) Dinosaurs: The Most Complete, Up-to-Date Encyclopedia for Dinosaur Lovers of All Ages, Winter 2010 Appendix.
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