Archosaur

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Archosaur

Archosaurs are a group o diapsid amniotes whase livin representatives consist o birds an crocodilians. This group includes aw extinct dinosaurs an aa, extinct crocodilian relatives, an pterosaurs. Archosauria, the archosaur clade, is a croun group that includes the maist recent common auncestor o livin birds an crocodilians. It includes twa main clades: Pseudosuchia, whilk includes crocodilians an thair extinct relatives, an Avemetatarsalia, whilk includes birds an thair extinct relatives (lik non-avian dinosaurs an pterosaurs).

Quick Facts Scientific classification, Subgroups ...
Archosaurs
Temporal range:
Early TriassicPresent, 250–0 Ma
PreЄ
Є
O
S
D
C
P
T
J
Pg
N
Birds an crocodilians (in this case a yellow-billed stork an a Nile crocodile) are the anerly livin archosaur groups.
Scientific classification e
Kinrick: Animalia
Phylum: Chordata
Clade: Crurotarsi
Clade: Archosauria
Cope, 1869
Subgroups
  • Avemetatarsalia
    (birds an thair extinct relatives)
  • Pseudosuchia
    (crocodilians an thair extinct relatives)
  • Incertae sedis
    • Avipes
    • Sikannisuchus
    • Smok
Synonyms

Arctopoda Haeckel, 1895
Avesuchia Benton, 1999

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