Metasuchia
| Metasuchia Temporal range: Early Jurassic - Recent,
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|---|---|
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| Skull of Sebecus icaeorhinus | |
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Reptilia |
| Clade: | Archosauria |
| Clade: | Pseudosuchia |
| Clade: | Crocodylomorpha |
| Clade: | Crocodyliformes |
| Clade: | Mesoeucrocodylia |
| Clade: | Metasuchia Benton and Clark, 1988 |
| Clades | |
Metasuchia is a major clade within the superorder Crocodylomorpha. It is split into two main groups, Notosuchia and Neosuchia.[1] Notosuchia is an extinct group that contains primarily small-bodied Cretaceous taxa with heterodont dentitions. Neosuchia includes extant crocodylians and basal taxa such as peirosaurids and pholidosaurids. It is phylogenetically defined by Sereno et al. (2001) as a clade containing Notosuchus terrestris, Crocodylus niloticus, and all descendants of their common ancestor.[2]
Phylogenetics
The phylogeny of basal metasuchians has experienced many revisions in recent years.[1] The phylogeny of notosuchians has been particularly revised, with the construction of Sebecia by Larsson and Sues (2007) to include peirosaurids in the clade.[3] Previously, peirosaurids were placed outside of Notosuchia. Larsson and Sues (2007) also suggested that Sebecosuchia (containing the families Baurusuchidae and Sebecidae) was polyphyletic, as Baurusuchus was placed outside of Sebecia, which itself was placed outside of Notosuchia. However, more recent phylogenetic studies have placed Baurusuchus within Notosuchia once again, although it is still not considered to be a sebecosuchian.[1]
Cladogram after Sereno et al., 2001:[2]
| Metasuchia | |
Cladogram after Sereno et al., 2003:[4]
| Metasuchia |
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Cladogram after Sereno and Larsson, 2009:[1]
| Metasuchia |
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References
- ^ a b c d Sereno, P. C. (2009). "Cretaceous crocodyliforms from the Sahara". ZooKeys. 28 (2009): 1–143.
{{cite journal}}: Unknown parameter|coauthors=ignored (|author=suggested) (help) - ^ a b Sereno, P. C. (2001). "The giant crocodyliform Sarcosuchus from the Cretaceous of Africa". Science. 294 (5546): 1516–1519.
{{cite journal}}: Unknown parameter|coauthors=ignored (|author=suggested) (help) - ^ Larsson, H. C. E. (2007). "Cranial osteology and phylogenetic relationships of Hamadasuchus rebouli (Crocodyliformes: Mesoeucrocodylia) from the Cretaceous of Morocco". Zoological Journal of the Linnean Society. 149: 533–567.
{{cite journal}}: Unknown parameter|coauthors=ignored (|author=suggested) (help) - ^ Sereno, P. C. (2003). "A new notosuchian from the Early Cretaceous of Niger". Journal of Vertebrate Paleontology. 23 (2): 477–482.
{{cite journal}}: Unknown parameter|coauthors=ignored (|author=suggested) (help)
External links
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