Camptosaurus
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Camptosaurus is an extinct genus of plant-eating, beaked ornithischian dinosaurs of the Late Jurassic period of western North America and possibly also Europe. The name means 'flexible lizard'.
Camptosaurus dispar skeleton
Historical skeletal restoration by O.C. Marsh, with skull based on remains now referred to Theiophytalia
Outdated mount of a C. nanus skeleton at the AMNH, now thought to be a growth stage of C. dispar
Cast of a skull from Bone Cabin Quarry West, Wyoming
Ankylopollexia
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Ankylopollexia is an extinct clade of ornithischian dinosaurs that lived from the Late Jurassic to the Late Cretaceous. It is a derived clade of iguanodontian ornithopods and contains the subgroup Sty
Camptosaurus
…analysis by Andrew McDonald and colleagues in 2010 suggested that like C. aphanoecetes is actually more closely related to more advanced iguanodonts (Styracosterna). It has been moved to the new genus Uteodon. While Marsh was describing Camptosaurus species in North America, numerous species from Europe were also…
Life restoration of Iguanacolossus
Hand of Iguanodon, showing the distinctive thumb of the group
Brain endocast of an Iguanodon, created in 1897 from specimen NHMUK R2501
A 1905 diagram showing the small size of an Edmontosaurus annectens brain (bottom; alongside that of Triceratops horridus, top) commented on in early sources