Ceratosauria

From Wikipedia, the free encyclopedia

Ceratosaurs Fossil range: Jurassic-Cretaceous
Image:Ceratosaurus nasicornis DB.jpg
Scientific classification
Kingdom: Animalia Phylum: Chordata Class: Sauropsida Superorder: Dinosauria Order: Saurischia Suborder: Theropoda Infraorder: Ceratosauria Marsh, 1884
Families
Abelisauridae Ceratosauridae Noasauridae

Ceratosaurs are a group of theropod dinosaurs defined as all theropods sharing a more recent common ancestry with Ceratosaurus than with birds. There is presently no universally agreed upon listing of species or diagnostic characters of Ceratosauria. According to one theory, Ceratosauria includes the Late Jurassic to Late Cretaceous theropods Ceratosaurus, Elaphrosaurus, and Abelisaurus, found primarily (though not exclusively) in the southern hemisphere. Traditionally, Ceratosauria included the above dinosaurs plus the Late Triassic to Early Jurassic Coelophysoidea (Coelophysis, Dilophosaurus, etc.), implying a much earlier divergence of ceratosaurs from other theropods. However, most recent studies have shown that coelophysoids do not form a clade with other ceratosaurs, and should be excluded from this group.

[edit] Taxonomy

• Infraorder Ceratosauria
  • Chuandongocoelurus
  • Elaphrosaurus
  •  ?Lukousaurus
  • Family Ceratosauridae
    • Ceratosaurus
    • Genyodectes
  • Superfamily Abelisauroidea
    • Genusaurus
    • Ozraptor
    • Spinostropheus
    • Tarascosaurus
    • Family Abelisauridae
    • Family Noasauridae

[edit] External links

• Ceratosauria at DinoData

ca:Ceratosaure (infraordre) de:Ceratosauria es:Ceratosauria it:Ceratosauria he:צרטוזאוריה lt:Ceratozaurai nl:Ceratosauria pl:Ceratozaury pt:Ceratosauria simple:Ceratosauria sk:Ceratosauria sv:Ceratosaurier vo:Ceratosauria zh:角鼻龍下目