Notobatrachus
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| Genus: | †Notobatrachus Reig 1956
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Notobatrachus is an extinct genus of frog from the Lower Jurassic (Toarcian) Cañadon Asfalto Formation, Cañadón Asfalto Basin and Middle Jurassic La Matilde Formation, Deseado Massif of Patagonia, Argentina.[3] N. degiustoi is the most completely known Jurassic frog and has been recorded in many outcrops of the La Matilde Formation of the Deseado Massif in southern Patagonia.[4]
Discovery
[edit]Most of the specimens of N. degiustoi are postmetamorphic individuals, snout-vent length between 90 and 150 millimetres (3.5 and 5.9 in). CPBA-V-14003 consists of disarticulated cranial and postcranial elements, and may correspond either to a late metamorphosing tadpole or an early postmetamorphic individual.[5] In 2024, a tadpole specimen of N. degiustoi (MPM-PV 23540) was reported from the La Matilde Formation of Argentina, representing the oldest known tadpole and the first stem-anuran larva in the fossil record.[6]
References
[edit]- ^ Fantasia, A.; Föllmi, K. B.; Adatte, T.; Spangenberg, J. E.; Schoene, B.; Barker, R. T.; Scasso, R. A. (2021). "Late Toarcian continental palaeoenvironmental conditions: An example from the Canadon Asfalto Formation in southern Argentina". Gondwana Research. 89 (1): 47–65. Bibcode:2021GondR..89...47F. doi:10.1016/j.gr.2020.10.001. S2CID 225120452. Retrieved 27 August 2021.
- ^ Pol, D.; Gomez, K.; Holwerda, F. M.; Rauhut, O. W.; Carballido, J. L. (2022). "Sauropods from the Early Jurassic of South America and the Radiation of Eusauropoda". South American Sauropodomorph Dinosaurs. 1 (1): 131–163. doi:10.1007/978-3-030-95959-3_4. Retrieved 2 May 2022.
- ^ Escapa et al., 2008
- ^ Báez & Nicoli, 2004, p.258
- ^ Báez & Nicoli, 2004, p.259
- ^ Chuliver, M.; Agnolín, F. L.; Scanferla, A.; Aranciaga Rolando, M.; Ezcurra, M. D.; Novas, F. E.; Xu, X. (2024). "The oldest tadpole reveals evolutionary stability of the anuran life cycle". Nature: 1–5. doi:10.1038/s41586-024-08055-y.
Bibliography
[edit]- Báez, Ana María; Nicoli, Laura (2004), "A new look at an old frog: the Jurassic Notobatrachus Reig from Patagonia", Ameghiniana, 41: 257–270, retrieved 2019-03-29
- Escapa, I.H.; Sterli, J.; Pol, D.; Nicoli, L. (2008), "Jurassic Tetrapods and Flora of Cañadón Asfalto Formation in Cerro Cóndor Area, Chubut Province" (PDF), Revista de la Asociación Geológica Argentina, 63 (4): 613–624, retrieved 2019-03-01
Further reading
[edit]- Wildlife of Gondwana: Dinosaurs and Other Vertebrates from the Ancient Supercontinent (Life of the Past) by Pat Vickers Rich, Thomas Hewitt Rich, Francesco Coffa, and Steven Morton
- The Age of Dinosaurs in Russia and Mongolia by Michael J. Benton, Mikhail A. Shishkin, David M. Unwin, and Evgenii N. Kurochkin
- Fossil Frogs and Toads of North America (Life of the Past) by J. Alan Holman
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- Archaeobatrachia
- Amphibian genera
- Prehistoric frogs
- Early Jurassic first appearances
- Middle Jurassic extinctions
- Frogs of South America
- Mesozoic frogs
- Middle Jurassic amphibians
- Jurassic amphibians of South America
- Middle Jurassic tetrapods of South America
- Jurassic Argentina
- Fossils of Argentina
- Cañadón Asfalto Formation
- Fossil taxa described in 1956
- Prehistoric amphibian stubs
- Frog stubs
- Jurassic animal stubs