Biology:Tetrastylus
From HandWiki
Tetrastylus is an extinct genus of dinomyid rodent that lived in South America during the Neogene and Quaternary periods.[1]
Distribution
Tetrastylus is known from Argentina,[2] Uruguay,[3] Brazil, and Venezuela.[1]
Palaeobiology
Locomotion
Analysis of the occipitocervical morphology of Tetrastylus intermedius specimens from northwestern Argentina suggests that this species was a terrestrial animal, but it still retained some holdover traits related to arborealism from its evolutionary past, such as larger paracondyles relative to the modern pacarana and a size-proportionate head.[2] It was less scansorial, however, than the extant Dinomys.[4]
References
- ↑ 1.0 1.1 "PBDB Taxon". https://paleobiodb.org/classic/basicTaxonInfo?taxon_no=42098.
- ↑ 2.0 2.1 Álvarez, Alicia; Ercoli, Marcos D. (2 November 2017). "Why pacaranas never say no: analysis of the unique occipitocervical configuration of † Tetrastylus intermedius Rovereto, 1914, and other dinomyids (Caviomorpha; Dinomyidae)" (in en). Journal of Vertebrate Paleontology 37 (6). doi:10.1080/02724634.2017.1385476. ISSN 0272-4634. https://www.tandfonline.com/doi/full/10.1080/02724634.2017.1385476. Retrieved 17 November 2025.
- ↑ Rinderknecht, Andrés; Ubilla, Martín; Manzuetti, Aldo; Toriño, Pablo; Perea, Daniel (5 May 2019). "First record of Tetrastylus Ameghino, 1886 (Rodentia; Dinomyidae) from the Upper Miocene of Uruguay". Revista Brasileira de Paleontologia 22 (1): 30–37. doi:10.4072/rbp.2019.1.03. https://www.researchgate.net/publication/333087848_First_record_of_Tetrastylus_Ameghino_1886_Rodentia_Dinomyidae_from_the_Upper_Miocene_of_Uruguay. Retrieved 19 November 2025.
- ↑ Ercoli, Marcos D.; Armella, Matías A.; Bonini, Ricardo A. (21 July 2025). "Locomotory habits and palaeoecology of rodents and native ungulates of the Neogene paleocommunities from northwestern Argentina (late Miocene-Pliocene; Santa María Group)" (in en). Historical Biology: 1–30. doi:10.1080/08912963.2025.2531425. ISSN 0891-2963. https://www.tandfonline.com/doi/full/10.1080/08912963.2025.2531425#d1e3427. Retrieved 17 January 2026.
Wikidata ☰ Q114891458 entry
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