Dvinosauria: Difference between revisions
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| ordo = [[Temnospondyli]] |
| ordo = [[Temnospondyli]] |
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| subordo = '''Dvinosauria''' |
| subordo = '''Dvinosauria''' |
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| subordo_authority = [[Adam Yates (paleontologist)|Yates]] and [[Anne Warren|Warren]], |
| subordo_authority = [[Adam Yates (paleontologist)|Yates]] and [[Anne Warren|Warren]], 2000 |
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| subdivision_ranks = Families |
| subdivision_ranks = Families |
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| subdivision = |
| subdivision = |
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Revision as of 18:13, 8 November 2008
| Dvinosauria | |
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| Dvinosaurus primus | |
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| Suborder: | Dvinosauria |
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Dvinosauridae | |
Dvinosaurs are one of several new clades of Temnospondyl amphibians named in the phylogenetic review of the group by Yates and Warren 2000. They represent a group of primitive semi-aquatic to completely aquatic amphibians, and are known from the Late Carboniferous to the Early Triassic, being most common in the Permian period. Their distinguishing characteristics are a reduction of the otic notch; the loss of a flange on the rear side of the pterygoid; and 28 or more presacral vertebrae.
References
- Laurin, M. and Steyer, J-S (2000) Phylogeny and Apomorphies of Temnospondyls, The Tree of Life Web Project
- Yates, A. M., and Warren A. A., 2000, The phylogeny of the ‘higher’ temnospondyls (Vertebrata: Choanata) and its implications for the monophly and origins of the Stereospondyli: Zoological Journal of the Linnean Society, v. 128, p. 77-121.
Links
- Temnospondyli: Limnarchia at Palaeos
- Dvinosauria at Mikko's Phylogeny Archive (cladogram based on Yates and Warren 2000)
- Suborder †Dvinosauria - Scientific Hierarchy at the Taxonomicon
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