Carnosaur
| Carnosaurs Temporal range: Jurassic – Cretaceous
| |
|---|---|
_Infobox_Panoply.png)
| |
Scientific classification 
| |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Clade: | Dinosauria |
| Clade: | Saurischia |
| Clade: | Theropoda |
| Clade: | Avetheropoda |
| Infraorder: | †Carnosauria |
Carnosauria are a subgroup of the theropod dinosaurs. They are the clade Carnosauria. The term was once used very widely, but is now defined more narrowly.
The group includes some of the main carnivores of the Jurassic and Cretaceous periods, such as Spinosaurus, Megalosaurus, Torvosaurus, Allosaurus, Carcharodontosaurus and Neovenator. Modern cladistic analysis defines Carnosauria as those tetanurans which share a more recent common ancestor with Allosaurus than with modern birds.[1]
Carnosaurs are characterized by several features. Some features must have been adaptations to their large size, such as their open skull, made of struts rather than solid bone. They had large eyes and a long, narrow skull. The femur ("thigh bone") is usually larger than the tibia ("shin bone"). This suggests close-to action was controlled by sight.
The legs are adapted for running, but not extremely so. They had strong arms, probably used to wrestle prey as the teeth bit in. The structure of an Allosaurus suggests a strongly-built general all-round predator. This is a different from a tyrannosaur like Albertosaurus, which was better adapted for running on open ground. Tyrannosaurs, with their small two-fingered hands, would use their heads for killing prey, and for head-butting rivals.
Classification
- Infraorder Carnosauria
- †Altispinax?
- †Gasosaurus?
- †Monolophosaurus?
- †Poekilopleuron?
- †Megalosauroidea
- †Allosauroidea
References
- ↑ Sereno P.C. 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
Content Disclaimer
Informasi ini disarikan dari Wikipedia dan disajikan kembali untuk tujuan edukasi. Konten tersedia di bawah lisensi CC BY-SA 3.0. Kami tidak bertanggung jawab atas ketidakakuratan data yang bersumber dari kontribusi publik tersebut.
- The information displayed on this website is sourced in part or in whole from Wikipedia and has been adapted for the purpose of restating it. We strive to provide accurate and relevant information, however:
- There is no guarantee of absolute accuracy. Wikipedia is an open, collaborative project that can be edited by anyone, so information is subject to change.
- It is not intended to constitute professional advice. The content displayed is for informational and educational purposes only. For important decisions (e.g., medical, legal, or financial), please consult a professional.
- Content copyright. Wikipedia is licensed under the Creative Commons Attribution-ShareAlike License (CC BY-SA). This means that content may be reused with appropriate attribution and shared under a similar license.
- Responsible use. Any risk arising from the use of information from this website is entirely the responsibility of the user.