Gilmoreosaurus

Taxobox
name = "Gilmoreosaurus"
fossil_range = Early Cretaceous
regnum = Animalia
phylum = Chordata
classis = Sauropsida
superordo = Dinosauria
ordo = Ornithischia
subordo = Ornithopoda
familia = Hadrosauridae?
genus = "Gilmoreosaurus"
genus_authority = Brett-Surman, 1979
subdivision_ranks = Species
subdivision =
* "G. mongoliensis" (type)
* "G. atavus"
* "G. kysylumensis"

"Gilmoreosaurus" is the name given to a genus of dinosaur from the Early Cretaceous. The type species is "Gilmoreosaurus mongoliensis". "Gilmoreosaurus kysylumensis" is considered a "nomen dubium" because it is described from teeth only, though other species preserve more material. It is believed, however, to be a hadrosaur or iguanodont. It lived in Asia, and one specimen was described formally as "Gilmoreosaurus atavus" by Nessov in 1995.

In 2003, evidence of tumors, including hemangiomas, desmoplastic fibroma, metastatic cancer, and osteoblastoma was discovered in fossilized "Gilmoreosaurus" skeletons. Rothschild "et al." tested dinosaur vertebrae for tumors using computerized tomography and fluoroscope screening. Several other hadrosaurids, including "Brachylophosaurus", "Edmontosaurus", and "Bactrosaurus", also tested positive. Although more than 10,000 fossils were examined in this manner, the tumors were limited to "Gilmoreosaurus" and closely-related genera. The tumors may have been caused by environmental factors or genetic propensity.cite journal| last = Rothschild| first = B.M.| authorlink = | coauthors = Tanke, D.H., Helbling II, M. and Martin, L.D.| title = Epidemiologic study of tumors in dinosaurs| journal = Naturwissenschaften| volume = 90| issue = 11| pages = 495-500| publisher = | location = | date = 2003| url = http://www.springerlink.com/content/ktqqkxcqdc620keb/ | doi = 10.1007/s00114-003-0473-9| id = | accessdate = 2008-07-25]

References

* [http://www.users.qwest.net/~jstweet1/iguanodontia.htm Iguanodontia] from "Thescelosaurus!"