Neotheropoda

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Neotheropods
Temporal range:
Late TriassicPresent, 220–0 Ma
Coelophysis mount NHM2.jpg
Cast of a Coelophysis bauri skeleton
House sparrow04.jpg
A house sparrow (Passer domesticus)
Scientific classification edit
Kingdom: Animalia
Phylum: Chordata
Clade: Dinosauria
Suborder: Theropoda
Clade: Neotheropoda
Bakker, 1986
Subgroups
Synonyms
  • Avepoda Paul, 2002
  • Eutheropoda Novas, Haro & Canale, 2003

Neotheropoda (meaning "new theropods") is a clade that includes coelophysoids and more advanced theropod dinosaurs, and the only group of theropods who survived the Triassic–Jurassic extinction event. Yet all of the neotheropods became extinct during the early Jurassic period except for Averostra.[citation needed]

Classification

Neotheropoda was named by Robert T. Bakker in 1986 as a group including the relatively advanced theropod subgroups Ceratosauria and Tetanurae.[1] However, most later researchers have used it to denote a broader group. Neotheropoda was first defined as a clade by Paul Sereno in 1998 as Coelophysis plus modern birds, which includes almost all theropods except the most primitive species.[2]

The following family tree illustrates a synthesis of the relationships of the early theropod groups compiled by Hendrickx et al. in 2015.[3]

Theropoda

Herrerasauridae

Eoraptor

Eodromaeus

Tawa

Daemonosaurus

Neotheropoda

CoelophysoideaCoelophysis Jeff Martz (flipped).jpg

Liliensternus

Zupaysaurus

DilophosauridaeDilophosaurus wetherilli (flipped).PNG

Averostra

CeratosauriaCeratosaurus nasicornis DB.jpg

TetanuraeMeyers grosses Konversations-Lexikon - ein Nachschlagewerk des allgemeinen Wissens (1908) (Antwerpener Breiftaube).jpg

References

  1. ^ Bakker, R.T. 1986. The Dinosaur Heresies. William Morrow, New York. 481 pp.
  2. ^ Sereno, 1998. A rationale for phylogenetic definitions, with application to the higher-level taxonomy of Dinosauria. Neues Jahrbuch für Geologie und Paläontologie, Abhandlungen. 210, 41-83.
  3. ^ Hendrickx, C., Hartman, S.A., & Mateus, O. (2015). An Overview of Non- Avian Theropod Discoveries and Classification. PalArch’s Journal of Vertebrate Palaeontology, 12(1): 1-73.
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