Deperetella
| Deperetella Temporal range: Eocene | |
|---|---|
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| Lower jaw of Deperetella cristata | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Mammalia |
| Infraclass: | Placentalia |
| Order: | Perissodactyla |
| Family: | †Deperetellidae |
| Genus: | †Deperetella Matthew & Granger, 1925 |
| Type species | |
| †Deperetella cristata Matthew & Granger, 1925 | |
| Species | |
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| Synonyms[1] | |
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Deperetella is an extinct genus of deperetellid perissodactyls from Middle to Late Eocene of Asia.[2] The genus was defined in 1925 by W. D. Matthew and Walter W. Granger, who named it after French paleontologist Charles Depéret.[3] The type species is Deperetella cristata.[2][4]
Description
The front-root teeth (premolars) are longer than the posterior-root teeth (molars), there are well-developed hypolophides on P3-P4, and the forelimbs are three-toed. It differs from Teleolophus in the size of the molars.[2][4] Postcranial skeleton of Deperetella shares many similarities with that of Teleolophus, in particular: long and slender limbs, relatively elongated and narrow lunar with a slightly concave medial edge of the radial facet, fibula reduced or fused with the tibia, and three functional fingers on the limbs.[5]
Taxonomy
The genus Diplolophodon, erected by Zdansky (1930) based on an upper dentition from the Heti Formation, China, was defined by Radinsky (1965) as a junior synonym of Deperetella.[2] In Reshetov and Tatarinov (1979),[4] Tsubamoto et al. (2000)[2] and later works Diplolophodon is also considered as a synonym of Deperetella.[6] However, it recovered as a valid genus in Deperetellidae family in a work of Bai Bin (2023).[6] The species Deperetella birmanica from Myanmar was assigned to the new genus Bahinolophus in 2005.[6]
References
- ↑ Tsubamoto, T.; Egi, N.; Takai, M.; Sein, C.; Maung, M. (2005). "Middle Eocene ungulate mammals from Myanmar: A review with description of new specimens" (PDF). Acta Palaeontologica Polonica. 50 (1): 117–138. Archived from the original (PDF) on 2022-02-02.
- 1 2 3 4 5 Tsubamoto, Takehisa; Holroyd, Patricia A.; Takai, Masanaru; Shigehara, Nobuo; Aung, Aye Ko; Thein, Tin; Soe, Aung Naing; Tun, Soe Thura (2000). "Upper premolar dentitions of Deperetella birmanica (Mammalia: Perissodactyla: Deperetellidae) from the Eocene Pondaung Formation, Myanmar" (PDF). Paleontological Research. 4 (3): 183-189. Archived (PDF) from the original on 2022-03-20.
- ↑ Matthew, W. D.; Granger, W. (1925). "New mammals from the Shara Murun Eocene of Mongolia" (PDF). American Museum Novitates (196). Archived from the original (PDF) on 2017-01-02.
- 1 2 3 Reshetov, V. U.; Tatarinov, L. P. (1979). Раннетретичные тапирообразные Монголии и СССР [Early Tertiary tapiroids of Mongolia and USSR] (in Russian). Nauka. p. 38.
- ↑ Bin, Bai; Wang, Yuan-Qing; Meng, Jin (2018). "Postcranial morphology of Middle Eocene deperetellid Teleolophus (Perissodactyla, Tapiroidea) from Shara Murun region of the Erlian Basin, Nei Mongol, China". Vertebrata PalAsiatica. 56 (3): 193-215. doi:10.19615/j.cnki.1000-3118.171214.
- 1 2 3 Bin, Bai (2023). "Reappraisal of some perissodacyl fossils from the Middle Eocene of the Lijiang Basin, Yunnan, China with a revision of tapiroid Diplolophodon". Vertebrata PalAsiatica. 61 (1): 26-42. doi:10.19615/j.cnki.2096-9899.220721.
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