- Dryosauridae
-
- Not to be confused with Dyrosauridae
Dryosaurids
Temporal range: Middle Jurassic – Early Cretaceous, 163–115 Ma
Dysalotosaurus lettowvorbecki – reconstructed skeleton in the Museum of Natural History in Berlin (Museum für Naturkunde) Scientific classification 
Kingdom: Animalia Phylum: Chordata Class: Reptilia Superorder: Dinosauria Order: †Ornithischia Suborder: †Ornithopoda Branch: †Iguanodontia Node: †Dryomorpha Family: †Dryosauridae
Milner & Norman, 1984Subgroups Dryosaurids were primitive iguanodonts. They are known from Middle Jurassic to Early Cretaceous rocks of Africa, Europe, and North America.[1][2][3][4]
Phylogeny
Until recently many dryosaurids have been regarded as dubious (Callovosaurus and Kangnasaurus) or as species of the type member, Dryosaurus (Dysalotosaurus, Elrhazosaurus and Valdosaurus). However, more recent studies redescribe these genera as valid.[3][4][5][6][7] The cladogram below follows Paul M. Barrett, Richard J. Butler, Richard J. Twitchett and Stephen Hutt (2011).[7]
Rhabdodontidae Dryomorpha Ankylopollexia
Dryosauridae Dysalotosaurus
Elrhazosaurus
References
- ^ Norman, David B.; Weishampel, David B. (1990). "Iguanodontidae and related ornithopods". In Weishampel, David B.; Dodson, Peter; and Osmólska, Halszka (eds.). The Dinosauria. Berkeley: University of California Press. pp. 510–533. ISBN 0-520-06727-4.
- ^ Norman, David B. (2004). "Basal Iguanodontia". In Weishampel, D.B., Dodson, P., and Osmólska, H. (eds.). The Dinosauria (2nd ed.). Berkeley: University of California Press. pp. 413–437. ISBN 0-520-24209-2.
- ^ a b Ruiz-Omeñaca, José Ignacio; Pereda Suberbiola, Xabier; and Galton, Peter M. (2007). "Callovosaurus leedsi, the earliest dryosaurid dinosaur (Ornithischia: Euornithopoda) from the Middle Jurassic of England". In Carpenter, Kenneth (ed.). Horns and Beaks: Ceratopsian and Ornithopod Dinosaurs. Bloomington and Indianapolis: Indiana University Press. pp. 3–16. ISBN 0-253-34817-X.
- ^ a b Galton, Peter M. (2009). "Notes on Neocomian (Lower Cretaceous) ornithopod dinosaurs from England – Hypsilophodon, Valdosaurus, "Camptosaurus", "Iguanodon" – and referred specimens from Romania and elsewhere" (pdf). Revue de Paléobiologie 28 (1): 211–273. http://www.ville-ge.ch/mhng/paleo/paleo-pdf/28-1/pal-28-1-11.pdf.
- ^ McDonald, A.T., Kirkland, J.I., DeBlieux, D.D., Madsen, S.K., Cavin, J., Milner, A.R.C. and Panzarin, L. (2010). "New Basal Iguanodonts from the Cedar Mountain Formation of Utah and the Evolution of Thumb-Spiked Dinosaurs." PLoS ONE 5, 11: e14075. doi:10.1371/journal.pone.0014075
- ^ Andrew T. McDonald (2011). "The taxonomy of species assigned to Camptosaurus (Dinosauria: Ornithopoda)". Zootaxa 2783: 52–68. http://www.mapress.com/zootaxa/2011/f/z02783p068f.pdf.
- ^ a b Paul M. Barrett, Richard J. Butler, Richard J. Twitchett and Stephen Hutt (2011). "New material of Valdosaurus canaliculatus (Ornithischia: Ornithopoda) from the Lower Cretaceous of southern England". Special Papers in Palaeontology 86: 131–163. https://docs.google.com/viewer?a=v&pid=explorer&chrome=true&srcid=0Bzmka2bXQZd_NzA0YzEwN2YtYjA5ZS00MjMwLTkwNGItZDMzNWVjZDIxY2Rl&hl=en_US.
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