Myocastor
| Myocastor Temporal range: Late Miocene - Recent
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| Nutria (Myocastor coypus) | |
Scientific classification 
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| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Mammalia |
| Infraclass: | Placentalia |
| Order: | Rodentia |
| Family: | Echimyidae |
| Subfamily: | Echimyinae |
| Tribe: | Myocastorini |
| Genus: | Myocastor Kerr, 1792 |
| Species | |
Myocastor (from Ancient Greek μῦς (mûs) 'rat, mouse', and κάστωρ (kástōr) 'beaver')[1][2] is a genus of rodent that contains the living nutria (or coypu), as well as several fossil species.
Taxonomy
[edit]Due to similar cranial morphology, the nutria was once considered a close relative of the Caribbean hutias and placed together with them in the family Capromyidae.[3] Later, it was more accepted to place it in its own family, the Myocastoridae.[4] Recent molecular studies place them in the family Echimyidae, in the tribe Myocastorini.[5][6][7]
Fossil record
[edit]Kerber et al. (2013) recognize the following species as valid:[8]
- Myocastor columnaris (Middle Pleistocene)
- Myocastor obesus (Late Miocene)
- Myocastor paranensis (Late Miocene)
Other species described but no longer considered valid include Myocastor minor, Myocastor perditus, and Myocastor priscus.
References
[edit]- ^ Bailly, Anatole (1981). Abrégé du dictionnaire grec français. Paris: Hachette. ISBN 978-2-01-003528-9. OCLC 461974285.
- ^ Bailly, Anatole. "Greek-French dictionary online". www.tabularium.be. Archived from the original on 2022-03-18. Retrieved 2017-01-24.
- ^ Woods, C.A.; Howland, E.B. (1979). "Adaptive Radiation of Capromyid Rodents: Anatomy of the Masticatory Apparatus". Journal of Mammalogy. 60 (1): 95–116. doi:10.2307/1379762. JSTOR 1379762.
- ^ Woods, C. A. (1982). "The history and classification of South American Hystricognath rodents: reflections on the far away and long ago". In Mares, M. A.; Genoways, H. H. (eds.). Mammalian Biology in South America. Pittsburgh: University of Pittsburgh. pp. 377–392.
- ^ Galewski, Thomas; Mauffrey, Jean-François; Leite, Yuri L. R.; Patton, James L.; Douzery, Emmanuel J. P. (2005). "Ecomorphological diversification among South American spiny rats (Rodentia; Echimyidae): a phylogenetic and chronological approach". Molecular Phylogenetics and Evolution. 34 (3): 601–615. Bibcode:2005MolPE..34..601G. doi:10.1016/j.ympev.2004.11.015. PMID 15683932.
- ^ Upham, Nathan S.; Patterson, Bruce D. (2012). "Diversification and biogeography of the Neotropical caviomorph lineage Octodontoidea (Rodentia: Hystricognathi)". Molecular Phylogenetics and Evolution. 63 (2): 417–429. Bibcode:2012MolPE..63..417U. doi:10.1016/j.ympev.2012.01.020. PMID 22327013.
- ^ Fabre, Pierre-Henri; Upham, Nathan S.; Emmons, Louise H.; Justy, Fabienne; Leite, Yuri L. R.; Loss, Ana Carolina; Orlando, Ludovic; Tilak, Marie-Ka; Patterson, Bruce D.; Douzery, Emmanuel J. P. (2017-03-01). "Mitogenomic Phylogeny, Diversification, and Biogeography of South American Spiny Rats". Molecular Biology and Evolution. 34 (3): 613–633. doi:10.1093/molbev/msw261. ISSN 0737-4038. PMID 28025278.
- ^ Kerber, L. (2013). "Late Quaternary fossil record of Myocastor Kerr, 1792 (Rodentia: Hystricognathi: Caviomorpha) from Brazil with taxonomical and environmental remarks". Quaternary International: 1–12.
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