Dvinosauria: Difference between revisions
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| subordo_authority = [[Adam Yates (paleontologist)|Yates]] and [[Anne Warren|Warren]], 2000 |
| 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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[[Trimerorhachidae]]<br> |
[[Trimerorhachidae]]<br> |
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[[Eobrachyopidae]]<br> |
[[Eobrachyopidae]]<br> |
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'''Dvinosaurs''' are one of several new [[clade]]s of [[Temnospondyli|Temnospondyl]] amphibians named in the [[cladistics|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 [[apomorphy|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]]. |
'''Dvinosaurs''' are one of several new [[clade]]s of [[Temnospondyli|Temnospondyl]] amphibians named in the [[cladistics|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 [[apomorphy|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]]. |
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==References== |
==References== |
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* [[Michel Laurin|Laurin, M.]] and [[Jean-Sébastien Steyer|Steyer, J-S]] (2000) [http://tolweb.org/accessory/Phylogeny_and_Apomorphies_of_Temnospondyls Phylogeny and Apomorphies of Temnospondyls], [[Tree of Life Web Project|The Tree of Life Web Project]] |
* [[Michel Laurin|Laurin, M.]] and [[Jean-Sébastien Steyer|Steyer, J-S]] (2000) [http://tolweb.org/accessory/Phylogeny_and_Apomorphies_of_Temnospondyls Phylogeny and Apomorphies of Temnospondyls], [[Tree of Life Web Project|The Tree of Life Web Project]] |
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* [[Adam Yates (paleontologist)|Yates, A. M.]], and [[Anne Earren|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. |
* [[Adam Yates (paleontologist)|Yates, A. M.]], and [[Anne Earren|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. |
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==Links== |
==Links== |
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* [http://www.palaeos.com/Vertebrates/Units/160Temnospondyli/200.html#Dvinosauria Temnospondyli: Limnarchia] at Palaeos |
* [http://www.palaeos.com/Vertebrates/Units/160Temnospondyli/200.html#Dvinosauria Temnospondyli: Limnarchia] at Palaeos |
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* [http://www.fmnh.helsinki.fi/users/haaramo/Metazoa/Deuterostoma/Chordata/amphibia/Limnarchia/Dvinosauria.htm Dvinosauria] at Mikko's Phylogeny Archive (cladogram based on Yates and Warren 2000) |
* [http://www.fmnh.helsinki.fi/users/haaramo/Metazoa/Deuterostoma/Chordata/amphibia/Limnarchia/Dvinosauria.htm Dvinosauria] at Mikko's Phylogeny Archive (cladogram based on Yates and Warren 2000) |
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* [http://www.taxonomy.nl/Taxonomicon/TaxonTree.aspx?id=646586 Suborder †Dvinosauria] - Scientific Hierarchy at the Taxonomicon |
* [http://www.taxonomy.nl/Taxonomicon/TaxonTree.aspx?id=646586 Suborder †Dvinosauria] - Scientific Hierarchy at the Taxonomicon |
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Revision as of 18:44, 16 October 2009
| Dvinosauria Temporal range: Late Carboniferous - Early Triassic
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| Dvinosaurus primus | |
| Scientific classification | |
| Kingdom: | |
| Phylum: | |
| Superclass: | |
| Class: | |
| Order: | |
| Suborder: | Dvinosauria |
| Families | |
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Trimerorhachidae | |
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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