Biology:Deltavjatia
| Deltavjatia | |
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| Skeleton | |
| Scientific classification | |
| Kingdom: | |
| Phylum: | |
| Class: | Reptilia
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| Family: | |
| Genus: | †Deltavjatia Lebedev, 1987[2]
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| Type species | |
| †Pareiasuchus vjatkensis Hartmann-Weinberg, 1937[3]
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| Synonyms | |
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Deltavjatia was a pareiasauromorph procolophonoid from the Tatarian stage of the Permian time period. It had a large body of about 1.5 m (4.9 ft) in length.[4] Deltavjatia was an herbivore and lived in what is now Russia .[5] The first specimen of Deltavjatia was a specimen of a skull and lower mandible (PIN 2212/1[5]), found in the Urpalov Formation in Kotelnich, Vyatka River. Since then, numerous mostly complete skeletons have been found, many of them being so well preserved due to the silty, anaerobic environment of the Kotelnich deposits that fossilised white blood cells are able to be distinguished in them.[6] Analyses of the bone histology of Deltavjatia show that they grew very rapidly during the early stages of their ontogeny but that their growth rate drastically slowed down once they reached approximately half of their full body size.[7]
Deltavjatia was placed as a subtaxon of Pareiasauridae by M.S.Y. Lee in 1997.[5]
See also
- Pareiasaur
- Procolophonia
- Kotelnich
- Vyatka (river)
- Russia
References
- ↑ Vasilenko, D. V. (2005-02-11). "Feeding damage on upper Permian plants from the Sukhona River". Paleontological Journal 41 (2): 207–211. doi:10.1134/S0031030107020116.
- ↑ "†Deltavjatia Lebedev 1987". Paleobiology Database. Fossilworks. http://www.fossilworks.org/cgi-bin/bridge.pl?a=taxonInfo&taxon_no=159483.
- ↑ Hartmann-Weinberg, A. (1937). "Pareiasauriden als Leitfossilien" (in de). Problemy Paleontologii 213 (2–3): 649–712. http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/year/2007/docId/17287. (Pareiasuchus vjatkensis, p. 664; Anthodon rossicus, p. 676)
- ↑ "Palaeos Vertebrates Anapsida: Pareiasauridae (2)". Palaeos.com. http://palaeos.com/vertebrates/anapsida/pareiasauridae2.html.
- ↑ 5.0 5.1 5.2 "Paleobiology Database: Pareiasuchus vjatkensis". Paleodb.org. http://www.fossilworks.org/cgi-bin/bridge.pl?action=taxonInfo&taxon_no=159475.
- ↑ Kiseleva, Daria; Shilovsky, Oleg; Shagalov, Evgeny; Ryanskaya, Anastasia; Chervyakovskaya, Maria; Pankrushina, Elizaveta; Cherednichenkoa, Nadezhda (15 July 2019). "Composition and structural features of two Permian parareptile (Deltavjatia vjatkensis, Kotelnich Site, Russia) bone fragments and their alteration during fossilisation". Palaeogeography, Palaeoclimatology, Palaeoecology 526: 28–42. doi:10.1016/j.palaeo.2019.04.015. https://www.sciencedirect.com/science/article/pii/S0031018218304589. Retrieved 4 June 2022.
- ↑ Boitsova, Elizabeth A.; Skutschas, Pavel P.; Sennikov, Andrey G.; Golubev, Valeriy K.; Masuytin, Vladimir V.; Masuytina, Olga A. (5 July 2019). "Bone histology of two pareiasaurs from Russia (Deltavjatia rossica and Scutosaurus karpinskii) with implications for pareiasaurian palaeobiology". Biological Journal of the Linnean Society 128 (2): 289–310. doi:10.1093/biolinnean/blz094. https://academic.oup.com/biolinnean/article/128/2/289/5528566?login=true. Retrieved 4 June 2022.
External links
Wikidata ☰ Q3021944 entry
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