Prenoceratops
Prenoceratops Temporal range: Late Cretaceous 74.3 Ma | |
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Cast of a fossil skeleton, The Children’s Museum of Indianapolis | |
Scientific classification | |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Reptilia |
Clade: | Dinosauria |
Order: | †Ornithischia |
Family: | †Leptoceratopsidae |
Genus: | †Prenoceratops Chinnery, 2004 |
Species: | †P. pieganensis |
Binomial name | |
Prenoceratops pieganensis Chinnery, 2004 | |
Prenoceratops, (meaning 'bent or prone-horned face' and derived from Greek prene-/πρηνη- meaning 'bent forwards' or 'prone', cerat-/κερατ- meaning 'horn' and -ops/ωψ meaning 'face') is a genus of ceratopsian dinosaur from the Late Cretaceous Period. Its fossils have been found in the upper Two Medicine Formation in the present-day U.S. state of Montana, in Campanian age rock layers that have been dated to 74.3 million years ago.[1]
Discovery and species
Prenoceratops was first described by Brenda J. Chinnery in 2004. It is unusual in that it is the only basal neoceratopsian known from a bonebed.
Prenoceratops species include P. pieganensis (type).
Classification
Prenoceratops belonged to the Ceratopsia (which name is derived from Ancient Greek, meaning 'horned face'), a group of herbivorous dinosaurs with parrot-like beaks, which thrived in North America and Asia during the Cretaceous Period. It is closely related to Leptoceratops, which it antedates by several million years. It is characterized by a lower, more sloping head than that of Leptoceratops.
Diet
Prenoceratops, like all ceratopsians, was a herbivore. During the Cretaceous, flowering plants were "geographically limited on the landscape", and so it is likely that this dinosaur fed on the predominant plants of the era: ferns, cycads and conifers. It would have used its sharp ceratopsian beak to bite off the leaves or needles.
See also
References
- ↑ Ryan, M. J., Evans, D. C., Currie, P. J., Brown, C. M., & Brinkman, D. (2012). New leptoceratopsids from the Upper Cretaceous of Alberta, Canada. Cretaceous Research, 35: 69-80.
- Chinnery, BJ (2004). "Description of Prenoceratops pieganensis gen et sp. nov. (Dinosauria: Neoceratopsia) from the Two Medicine Formation of Montana.". Journal of Vertebrate Paleontology. 24 (3): 572–590. doi:10.1671/0272-4634(2004)024[0572:DOPPGE]2.0.CO;2. ISSN 0272-4634.
- http://www.vertpaleo.org/jvp/24-572-590.html (online abstract of the preceding article)
- Liddell & Scott (1980). Greek-English Lexicon, Abridged Edition. Oxford University Press, Oxford, UK. ISBN 0-19-910207-4.