Crocodilia

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Crocodilians
NileCrocodile.jpg
Nile crocodiles (Crocodylus niloticus)
Scienteefic classification e
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Clade: Crocodylomorpha
Clade: Eusuchia
Order: Crocodylia
Owen, 1842
Subgroops
Crocodylia Distribution

The Crocodilia (or Crocodylia) are an order o lairge reptiles. Thay are the closest livin relatives o birds, as the twa groups are the anly kent survivors o the Archosauria.[1] Members o the crocodilian tot group, the clade Pseudosuchia, appeared aboot 250 million years ago in the Early Triassic period,[2][3] an exhibitit a wide diversity o furms durin the Mesozoic era.

The order Crocodilia includes the true crocodiles (faimily Crocodylidae), the alligators an caimans (faimily Alligatoridae) an the gharials (faimily Gavialidae). Altho the term 'crocodiles' is sometimes uised tae refer tae aw o these, a less ambiguous vernacular term for this groop is 'crocodilians'.

References[eedit | eedit soorce]

  1. "ADW: Crocodilia: Information". Animaldiversity.ummz.umich.edu. Retrieved 2009-04-05. 
  2. 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: 1–0. doi:10.1206/352.1.  edit
  3. Butler, R. J.; Brusatte, S. L.; Reich, M.; Nesbitt, S. J.; Schoch, R. R.; Hornung, J. J. (2011). "The Sail-Backed Reptile Ctenosauriscus from the Latest Early Triassic of Germany and the Timing and Biogeography of the Early Archosaur Radiation". In Farke, Andrew Allen. PLoS ONE 6 (10): e25693. doi:10.1371/journal.pone.0025693. PMC 3194824. PMID 22022431.  edit