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Reptilia (lizards, snakes, tortoises, terrapins, turtles,
crocodiles, birds and extinct relatives)
Life >
Eukaryotes
>
Opisthokonta >
Metazoa
(animals) > Bilateria > Deuterostomia >
Chordata >
Craniata > Vertebrata (vertebrates) > Gnathostomata (jawed vertebrates) >
Teleostomi (teleost fish) > Osteichthyes (bony fish) > Class:
Sarcopterygii (lobe-finned fish) > Stegocephalia (terrestrial vertebrates) >
Tetrapoda
(four-legged vertebrates) > Reptiliomorpha > Amniota Classification
Anapsida |
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# non-chelonians
Include: Mesosauridae, Millerettidae, Acleistorhinus,
Lanthanosuchidae, Macroleter, Nyctiphruretia, Pareiasauria, Procolophonoidea |
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Chelonia (turtles, tortoises and terrapins)
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Romeriida |
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# 'non-diapsids'
Include: Captorhinidae and Protorothyrididae |
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Diapsida (lizards, snakes, crocodiles, dinosaurs, birds, and relatives) |
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Lepidosauromorpha |
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'non-Lepidosauria'
Include: Saurosternon, Paliguana |
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Lepidosauria |
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Squamata (lizards and snakes) |
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Infraclass: Rhynchocephalia (tuataras and extinct
relatives) Tuataras used to be widespread in New Zealand
but are now limited to a few islands off the coast of New Zealand. There was
thought to be only one species on these islands but genetic analysis has
revealed two: Sphenodon punctatus and Sphenodon guentheri.
Tuataras were abundant over 200 million years ago and these two species are
all that remain. They look like lizards but the structure of their skull is
different and their teeth are not separate structures but serrations along
the edges of the upper and lower jaws. |
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Archosauromorpha |
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# 'non-Archosauria'
Include: Proterochapmsia, Erythrosuchia, Proterosuchia,
Prolacertiformes, Trilophosauria, Rhynchosauria, Choristodera, Placodontia |
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Archosauria |
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# various fossil groups |
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Crocodylomorpha (crocodiles and extinct
relatives) |
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Dinosauria (dinosaurs, including birds) |
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Ornithischia (bird-hipped plant-eating dinosaurs) |
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Saurischia |
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Sauropodomorpha (long-necked plant-eating dinosaurs) |
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Theropoda (bipedal predatory dinosaurs, including birds) |
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various fossil dinosaurs |
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Coelurosauria (tyrannosaurs, Oviraptor, Velociraptor,
birds and relatives) |
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various fossil dinosaurs
Include: Ornitholestes, Compsognathidae, Alvarezsauridae,
Ornithomimidae, Therizinosauridae, Tyrannosauroidea |
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Maniraptora |
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various fossil dinosaurs
Include: Oviraptorosauria, Dromaeosauridae and
Troodontidae |
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Aves
(birds) |
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