Overview
Seymouriamorpha were a small but widespread group of reptiliomorphs. Many seymouriamorphs were terrestrial or semi-aquatic. However, aquatic larvae bearing external gills and grooves from the lateral line system has been found, making them unquestionably amphibians. The adults were terrestrial. They ranged from lizard-sized creatures (30 centimeters) to crocodile-sized 150 centimeter long animals. They were reptile-like. Because seymouriamorphs are reptiliomorphs, they were the distant relatives of amniotes, or the relatives of the amniotes's ancestor. Seymouriamorphs form into three main groups, , Discosauriscidae, and Seymouriidae, a group that includes the best known genus, Seymouria. The last seymouriamorph became extinct by the end of Permian.
- Reptiliomorpha
- Order Seymouriamorpha
- Utegenia
- Family Waggoneriidae
- Waggoneria[1]
- Family Kotlassiidae
- Biarmica
- Enosuchus
- Kotlassia
- Microphon
- Leptoropha
- Family Karpinskiosauridae
- Buzulukia
- Karpinskiosaurus
- Family Discosauriscidae
- Ariekanerpeton
- Discosauriscus
- Makowskia
- Spinarerpeton
- Family Seymouriidae
- Gnorhinosuchus
- Nyctiboetus
- Rhinosauriscus
- Seymouria
Cladogram based on Ruta, Jeffery, & Coates (2003):[2]
Cladogram based on Klembara (2009) & Klembara (2010):[3][4]
Gallery
Discosauriscus
Kotlassia
Karpinskiosaurus
Gallery
Discosauriscus
Kotlassia
Karpinskiosaurus
References
- ^ Olson, E. C. (1951). "Fauna of upper Vale and Choza: 1-5 Fieldiana:". Geology 10 (11): 89?128.
- ^ Ruta, M.; Jeffery, J. E.; and Coates, M. I. (2003). "A supertree of early tetrapods". Proceedings of the Royal Society B 270 (1532): 2507?16. doi:10.1098/rspb.2003.2524. PMC 1691537. PMID 14667343. http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=1691537.
- ^ Klembara, Jozef (2009). "The skeletal anatomy and relationships of a new discosauriscid seymouriamorph from the lower Permian of Moravia (Czech Republic)". Annals of Carnegie Museum 77 (4): 451?483. doi:10.2992/0097-4463-77.4.451.
- ^ Klembara, Jozef (2011). "The cranial anatomy, ontogeny, and relationships of Karpinskiosaurus secundus (Amalitzky) (Seymouriamorpha, Karpinskiosauridae) from the Upper Permian of European Russia". Zoological Journal of the Linnean Society 161 (1): 184?212. doi:10.1111/j.1096-3642.2009.00629.x.
External links
- Bystrow, A.P. Kotlassia prima Amalitzky. Bulletin of the Geological Society of America, Washington, 1944, v.55, N5, pp.379-416.
- Seymouriamorpha - at Paleos
- Seymouriamorpha at Tree of Life Web Project
Taxonomy
The Order Seymouriamorpha is further organized into finer groupings including:
- Family (3): Discosauriscidae · Kotlassiidae · Seymouriidae
- Species: ZipcodeZoo has pages for 0 species and subspecies in the Order Seymouriamorpha.
Families
Discosauriscidae
Kotlassiidae
Seymouriidae
At least 3 species and subspecies belong to the Family Seymouriidae.
More info about the Family Seymouriidae may be found here.
References
- ^ Olson, E. C. (1951). "Fauna of upper Vale and Choza: 1-5 Fieldiana:". Geology 10 (11): 89?128.
- ^ Ruta, M.; Jeffery, J. E.; and Coates, M. I. (2003). "A supertree of early tetrapods". Proceedings of the Royal Society B 270 (1532): 2507?16. doi:10.1098/rspb.2003.2524. PMC 1691537. PMID 14667343. http://www.pubmedcentral.ni h.gov/articlerender.fcgi?tool=pmcentrez&artid=1691537.
- ^ Klembara, Jozef (2009). "The skeletal anatomy and relationships of a new discosauriscid seymouriamorph from the lower Permian of Moravia (Czech Republic)". Annals of Carnegie Museum 77 (4): 451?483. doi:10.2992/0097-4463-77.4.451.
- ^ Klembara, Jozef (2011). "The cranial anatomy, ontogeny, and relationships of Karpinskiosaurus secundus (Amalitzky) (Seymouriamorpha, Karpinskiosauridae) from the Upper Permian of European Russia". Zoological Journal of the Linnean Society 161 (1): 184?212. doi:10.1111/j.1096-3642.2009.00629.x.
Sources
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