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Re: American Iguanodons stay away from me
Cliff Green wrote:
(Thanks to Thomas for the translation).
What kind of record do we have of North American Iguanodons? I know we
have some in the Cedar Mountain Formation, but have any of them been
discribed, and more importantly, have any of them been discovered with a
goodly portion of skull material? I have a non finished iguanodon sculpture
laying around, that needs something more than looking like Aladar from
Disneys " Dinosaur ".
Early Cretaceous iguanodont(o)ids from North America...
What I can say is that good skull material is known for _Iguanodon
lakotaensis_, which comes from the Lakota Formation of South Dakota. Norman
(1998) claimed that _I. lakotaensis_ is indistinguishable from the European
species (now type species) _I.bernissartensis_, thereby making it a junior
synonym. I think _Camptosaurus depressus_ may also hail from the Lakota
Formation, but I don't know much about this species. Nor do I know the
current status of Bakker's "Garden of the Gods" iguanodontid.
_Planicoxa venenica_, described by DiCroce and Carpenter (2001), is an
iguanodontoid from the Cedar Mountain Formation of Utah; but no skull
material is known for this guy. _Iguanodon ottingeri_ comes from the same
formation, but it's known only from teeth, and is considered a nomen dubium.
I've heard that there is at least one other iguanodontid from this
formation, so far undescribed.
Bakker, R.T. (1998). Dinosaur Mid-Life Crisis: The Jurassic-Cretaceous
Transition in Wyoming and Colorado. Lower and Middle Cretaceous Terrestrial
Ecosystems. New Mexico Museum of Natural History and Science Bulletin. 14:
DiCroce, T. and Carpenter, K. (2001). New Ornithopod from the Cedar Mountain
Formation (Lower Cretaceous) of Eastern Utah. In: Tanke, D.H. and
Carpenter, K. (Eds). Mesozoic Vertebrate Life:
New Research inspired by the Paleontology of Philip J. Currie, Indiana
University Press, Bloomington & Indianapolis, Indiana, p.183-196.
Norman, D. B. (1998). On Asian ornithopods (Dinosauria: Ornithischia). 3. A
new species of iguanodontid dinosaur. Zoological Journal of the Linnean
Society. 122: 291-348.