What is Crocodylomorph?
{{Automatic taxobox | name = Crocodylomorphs | fossil_range = [[Upper Triassic]]&ndash;Recent, 235{{ndash}}present. | image = Terrestrisuchus.jpg | image_upright = 1.15 | image_caption = Skeleton of ''[[Terrestrisuchus]]'', an early crocodylomorph | display_parents = 2 | taxon = Crocodylomorpha | authority = [[Oliver Perry Hay|Hay]], 1930 |}} The '''Crocodylomorphs''' are an important group of [[archosaur]]s. It includes the [[crocodilia]]ns and their extinct relatives. They were the only members of [[Pseudosuchia]] to survive the end-Triassic extinction. During [[Mesozoic]] and early [[Tertiary]] times the Crocodylomorphs were much more diverse than they are now. They were originally small, lightly built, active land animals. These were replaced during the early [[Jurassic]] by various [[aquatic]] and [[Marine biology|marine]] forms. The later Jurassic, [[Cretaceous]], and [[Tertiary]] saw a wide diversity of terrestrial and semi-aquatic lines. Modern crocodilians do not appear until the [[Upper Cretaceous]]. == Evolutionary history == [[Image:Sebecus icaeorhinus.JPG|thumb|''[[Sebecus]] icaeorhinus'' skull: [[Lower Jurassic|Early Jurassic]]. It was entirely terrestrial, and carnivorous]] The crocodylian lineage (clade [[Crurotarsi]]) were a very diverse group of reptiles. Not only are they an ancient group of animals, at least as old as the [[dinosaur]]s, they also evolved into a great variety of forms.<ref>Nesbitt S.J. 2011. The early evolution of archosaurs: relationships and the origin of major clades. ''Bulletin of the American Museum of Natural History''. '''352''': 1–292.</ref> The earliest forms, the [[sphenosuchia]]ns, evolved during the [[Upper Triassic]]. They were slim land animals built like [[greyhound]]s. During the [[Jurassic]] and the [[Cretaceous]], [[Ocean|marine]] forms evolved forelimbs that were paddle-like and had a tail similar to modern fish. The group had a wider range of habitats and behaviours than it does at present. ''Dakosaurus andiniensis'', a species closely related