Krzyzanowskisaurus
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| Krzyzanowskisaurus hunti (Heckert, 2002) |
Krzyzanowskisaurus is the name given to a genus of dinosaur from the Late Triassic. The generic name honours Stan Krzyzanowski. It is a tooth taxon, based on fossils only of teeth. These teeth have been found in the U.S. states of Arizona (including the type locality) and New Mexico. The original report described it as a "probable ornithischian". Heckert (2005) suggests that Kyzyzanowskisaurus teeth have biostratigraphic utility as an index fossil of the St. Johnsian sub-lvf (land-vertebrate faunachron).
The type species, Krzyzanowskisaurus hunti, was reevaluated by Heckert in 2005, after previously being described by him as Revueltosaurus hunti in 2002. The name was changed when it was discovered that the type species of Revueltosaurus, R. callenderi, was a pseudosuchian rather than an ornithischian dinosaur (Parker et al. 2005). "R." hunti, however, displays an orithischian-like feature not present in R. callenderi (teeth possessing a cingulum), suggesting to Heckert (2005) that it represents a new genus of early ornithischian.
[edit] References
- Heckert, A.B., 2005. Krzyzanowskisaurus, a new name for a probable ornithischian dinosaur from the Upper Triassic Chinle Group, Arizona and New Mexico, USA. New Mexico Museum of Natural History and Science Bulletin 29: 77-83.
- Parker, W. G., R. B. Irmis, S.N. Nesbitt, J. W. Martz & L. S. Browne. 2005. The pseudosuchian Revueltosaurus callenderi and its implications for the diversity of early ornithischian dinosaurs. Proceedings of the Royal Society London B272 (1566): 963–969.
- http://www.users.qwest.net/~jstweet1/dinosauromorpha.htm
- http://dml.cmnh.org/2005Nov/msg00284.html
- http://www.dinosaurier-web.de/galery/pages_k/krzyzanowskisaurus.html with picture
