Cannabaceae

Otsheria
Temporal range: Middle Permian, 267 Ma
Life restoration of Otsheria
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Clade: Synapsida
Clade: Therapsida
Suborder: Anomodontia
Genus: Otsheria
Tchudinov, 1960
Species:
O. netzvetajevi
Binomial name
Otsheria netzvetajevi
Tchudinov, 1960

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

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

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References

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  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. ^ Ivakhnenko, M.F. (2003). "Eotherapsids from the East European Placket (Late Permian)". Paleontological Journal. 37 (S4): 339–465. Retrieved 6 March 2023.
  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

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  • 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


One thought on “Cannabaceae

  1. Well, that’s interesting to know that Psilotum nudum are known as whisk ferns. Psilotum nudum is the commoner species of the two. While the P. flaccidum is a rare species and is found in the tropical islands. Both the species are usually epiphytic in habit and grow upon tree ferns. These species may also be terrestrial and grow in humus or in the crevices of the rocks.
    View the detailed Guide of Psilotum nudum: Detailed Study Of Psilotum Nudum (Whisk Fern), Classification, Anatomy, Reproduction

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