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From Wikipedia, the free encyclopedia

Archosauromorphs
Fossil range: Late Permian–Recent
Trilophosaurus, a primitive archosauromorph
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Subclass: Diapsida
Infraclass: Archosauromorpha
von Huene, 1946
Orders

See text

Archosauromorpha (Greek for "ruling lizard forms") is an infraclass of diapsid reptiles that first appeared during the late Permian and became more common during the Triassic. Included in this infraclass are the orders Rhynchosauria, Trilophosauridae, Prolacertiformes, Archosauriformes, and, tentatively, the Choristodera. While superficially these reptiles vary in appearance (at one time they were even included in different subclasses – the trilophosaurs were considered euryapsids, and the rhynchosaurs were considered lepidosaurs and were included in the same order as the tuatara), they are actually united by a number of small skeletal and skull-related details that suggest they form a clade that descended from a single common ancestor.

Of the five taxa mentioned above the first three died out at or before the end Triassic extinction. The choristoderans continued as a minor group until the Miocene, and the Archosauriformes were important factors in early Triassic environments before giving rise to the even more successful Archosauria.

Contents

Taxonomy

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Classification

Phylogeny

Archosauromorpha 


Rhynchosauria




?Teraterpeton



Trilophosauria






Prolacertiformes


 Archosauriformes 

?Uatchitodon




Proterosuchidae




?Erythrosuchidae




Euparkeriidae




?Turfanosuchus




Proterochampsidae




Yonghesuchus


 Archosauria 

Crurotarsi (crocodiles and relatives)



Avemetatarsalia (dinosaurs, pterosaurs, birds, and relatives)












External links


Wiktionary

Up to date as of January 15, 2010

Definition from Wiktionary, a free dictionary

Contents

Translingual

Etymology

From Ancient Greek ἀρχός (arkhos), ruler, leader) + σαῦρος (sauros), lizard) + μορφή (morphē), form).

Proper noun

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Archosauromorpha

  1. a taxonomic infraclass, within subclass Diapsida - the dinosaurs, pterosaurs, and the modern crocodiles
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See also


Wikispecies

Up to date as of January 23, 2010

From Wikispecies

Taxonavigation

Main Page
Cladus: Eukaryota
Supergroup: Unikonta
Cladus: Opisthokonta
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Cladus: Deuterostomia
Phylum: Chordata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Superclassis: Tetrapoda
Classis: Reptilia
Subclassis: Diapsida
Infraclassis: Archosauromorpha
Divisio: Archosauria- †Unspecified

Vernacular names

English: Archosauromorpha
Español: Arcosauromorpha
Esperanto: Arkosaŭromorfoj
Nederlands: Arcosauromorpha
日本語: 主竜形類
Українська: Архозавроподібні

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