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Temporal range: Late JurassicLate Cretaceous, 156–66 Ma
Isle of Wight Mantellisaurus.jpg
Mantellisaurus skeleton, Natural History Museum, London
Scientific classification e
Kingdom: Animalia
Phylum: Chordata
Clade: Dinosauria
Order: Ornithischia
Suborder: Ornithopoda
Clade: Dryomorpha
Clade: Ankylopollexia
Sereno, 1986

Ankylopollexia is an extinct clade of dinosaurs within the Ornithischia. They lived from 156 to 66 million years ago.[1] The name stems from the Greek word, “ankylos”, meaning stiff, fused, and the Latin word, “pollex”, meaning thumb.[2] One of the most famous and most derived members of the Ankylopollexia clade is the Iguanodon. The Hadrosaurs are also in this group.

References[change | change source]

  1. McDonald A.T. 2012. Phylogeny of Basal Iguanodonts (Dinosauria: Ornithischia): An Update. PLoS ONE 7 (5): e36745. doi:10.1371/journal.pone.0036745
  2. Sereno P.C. 1986. Phylogeny of the bird-hipped dinosaurs (order Ornithischia). National Geographic Research 2 (2): 234–56