Ankylopollexia

Ankylopollexia; Temporal range: Late Jurassic–Late Cretaceous,
	Mantellisaurus skeleton, Natural History Museum, London
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Clade:	Dinosauria
Order:	†Ornithischia
Suborder:	†Ornithopoda
Clade:	†Dryomorpha
Clade:	†Ankylopollexia; Sereno, 1986
Subgroups
	†Camptosaurus; †Cumnoria; †Draconyx; †Owenodon?; †Uteodon; †Styracosterna †Barilium; †Bayannurosaurus; †Cedrorestes; †Dakotadon; †Fukuisaurus; †Hippodraco; †Hypselospinus; †Iguanacolossus; †Lanzhousaurus; †Lurdusaurus; †Magnamanus; †Osmakasaurus; †Planicoxa; †Proa; †Theiophytalia; †Hadrosauriformes †Bolong; †Jinzhousaurus; †Ouranosaurus; †Morelladon; †Iguanodontidae; †Hadrosauroidea; ; ;

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

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

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[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

Ankylopollexia Temporal range: Late Jurassic–Late Cretaceous,

Mantellisaurus skeleton, Natural History Museum, London
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Clade:	Dinosauria
Order:	†Ornithischia
Suborder:	†Ornithopoda
Clade:	†Dryomorpha
Clade:	†Ankylopollexia Sereno, 1986
Subgroups
†Camptosaurus †Cumnoria †Draconyx †Owenodon? †Uteodon †Styracosterna †Barilium †Bayannurosaurus †Cedrorestes †Dakotadon †Fukuisaurus †Hippodraco †Hypselospinus †Iguanacolossus †Lanzhousaurus †Lurdusaurus †Magnamanus †Osmakasaurus †Planicoxa †Proa †Theiophytalia †Hadrosauriformes †Bolong †Jinzhousaurus †Ouranosaurus †Morelladon †Iguanodontidae †Hadrosauroidea