Owenodon

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Owenodon
Temporal range: Early Cretaceous, 143Ma
Owenodon.jpg
Holotype lower jaw
Scientific classification e
Kingdom: Animalia
Phylum: Chordata
Clade: Dinosauria
Order: Ornithischia
Clade: Ornithopoda
Clade: Dryomorpha
Clade: Ankylopollexia
Genus: Owenodon
Galton, 2009
Species: † O. hoggii
Binomial name
Owenodon hoggii
(Owen, 1874 [originally Iguanodon hoggii])

Owenodon is a genus of iguanodontian dinosaur known from a partial lower jaw discovered in Early Cretaceous-age rocks of Durlston Bay, Dorset, United Kingdom. The specimen, NHM R2998, comes from the Purbeck Limestone, dating to the middle Berriasian stage (approximately 143 million years ago).[1] It was first described by Richard Owen, who in 1874 assigned it to Iguanodon as the type specimen of the new species I. hoggii, the specific name honouring naturalist A.J. Hogg who had originally collected the fossil in 1860. The bone was damaged during initial preparation but was freed from the surrounding rock matrix by an acid bath between 1975 and 1977. David Norman and Paul Barrett subsequently transferred the species to Camptosaurus in 2002,[2] but this was challenged,[3][4] and in 2009 Peter Galton assigned the species to the new genus Owenodon. Galton interpreted the genus as an iguanodontoid more derived than Camptosaurus but less derived than Lurdusaurus.[1]

References[edit]

  1. ^ a b Galton, Peter M. (2009). "Notes on Neocomian (Late Cretaceous) ornithopod dinosaurs from England – Hypsilophodon, Valdosaurus, "Camptosaurus", "Iguanodon" – and referred specimens from Romania and elsewhere" (pdf). Revue de Paléobiologie 28 (1): 211–273. 
  2. ^ Norman, David B.; and Barrett, Paul M. (2002). "Ornithischian dinosaurs from the Lower Cretaceous (Berriasian) of England". Special Papers in Palaeontology 68: 161–189. 
  3. ^ Carpenter, Kenneth; and Wilson, Yvonne (2008). "A new species of Camptosaurus (Ornithopoda: Dinosauria) from the Morrison Formation (Upper Jurassic) of Dinosaur National Monument, Utah, and a biomechanical analysis of its forelimb". Annals of the Carnegie Museum 76: 227–263. 
  4. ^ Paul, Gregory S. (2008). "A revised taxonomy of the iguanodont dinosaur genera and species". Cretaceous Research 29 (2): 192–216. doi:10.1016/j.cretres.2007.04.009.