Otsheria

<i>Otsheria</i>

Otsheria

Extinct genus of therapsids

Otsheria is an extinct genus of anomodont, in the infraorder venyukovioidea. It lived in modern-day Russia during the Permian.[1]

Quick Facts Scientific classification, Binomial name ...

The genus is named for the Ochyor region where it was discovered in 1960, and the type species is Otsheria netzvetajevi.[2]

The holotype, a skull lacking a mandible (PIN 1758/5), is the only Otsheria fossil extant. The skull is 10.5 centimetres (4.1 in) in length, with large eye sockets and a short, broad snout. The skull suggests four incisors and nine short, flattened maxillary teeth. The canines are undifferentiated. The shape of the teeth and skull both suggest a mouth adapted for cutting plant parts, which in turn suggests a herbivorous or omnivorous diet.[3]

O. netzvetajevi skull.

See also

References

  1. [1]
    Modesto, S. P. & Rybcynski, N. The amniote faunas of the Russian Permian: implications for Late Permian terrestrial vertebrate biogeography. In Benton, M. J.; Shishkin, M. A.; Unwin, D. M.; Kurochkin, E. N. The Age of Dinosaurs in Russia and Mongolia. Cambridge University Press, 2001. 672 p.
  2. [2]
    Ivakhnenko, M.F. (2003). "Eotherapsids from the East European Placket (Late Permian)". Paleontological Journal. 37 (S4): 339–465. Retrieved 6 March 2023.
  3. [3]
    Kemp, T. S. (2005). The Origin and Evolution of Mammals. Oxford University Press. pp. 39–42. ISBN 978-0-19-850761-1.

Further reading

  • The Origin and Evolution of Mammals (Oxford Biology) by T. S. Kemp
  • The Age of Dinosaurs in Russia and Mongolia by Michael J. Benton, Mikhail A. Shishkin, David M. Unwin, and Evgenii N. Kurochkin
  • Origins of the Higher Groups of Tetrapods: Controversy and Consensus by Hans-Peter Schultze and Linda Trueb
  • Reptiles and Herbivory by G.M. King


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