Ivanantonia
Extinct genus of rodents
Ivanantonia Temporal range: early Eocene PreꞒ Ꞓ O S D C P T J K Pg N | |
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Scientific classification ![]() | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Mammalia |
Order: | Rodentia |
Family: | incertae sedis |
Genus: | †Ivanantonia Shevyreva, 1989 |
Species: | †I. efremovi |
Binomial name | |
†Ivanantonia efremovi Shevyreva, 1989 |
Ivanantonia is the only genus in the extinct rodent family Ivanantoniidae and is represented by a single species, Ivanantonia efremovi, from the early Eocene of Mongolia. Ivanantonia is poorly known, with only the lower dentition represented. The genus is unusual among early rodents in lacking all lower premolars and in showing evidence of propalinal chewing.[1] The relationships of Ivanantonia are unclear. It was described as a ctenodactyloid. Hartenberger et al. suggested a potential relationship to the muroid Nonomys but declined to assign Ivanantoniidae to a suborder within Rodentia.[1]
References
- ^ a b Hartenberger, Jean-Louis; Dashzeveg, Demberelyin; Martin, Thomas (1 April 1997). "What isIvanantonia efremovi (Rodentia, Mammalia)?". Paläontologische Zeitschrift. 71 (1): 135–143. Bibcode:1997PalZ...71..135H. doi:10.1007/BF03022555.
- Hartenberger, Jean-Louis; Dashzeveg, Demberelyin; Martin, Thomas (1997). "What is Ivanantonia efremovi (Rodentia, Mammalia)?". Paläontologische Zeitschrift. 71 (1–2): 135–143. Bibcode:1997PalZ...71..135H. doi:10.1007/bf03022555. S2CID 83663943.
- Shevyreva, N.S. 2007. 1989. New rodents (Ctenodactyloidea, Rodentia, Mammalia) from the Lower Eocene of Mongolia. Paleontological Journal, 3: 60–72.
Further reading
- D. Dashzeveg, J.-L. Hartenberger, T. Martin and S. Legendre. 1998. A peculiar minute Glires (Mammalia) from the early Eocene of Mongolia. Bulletin of Carnegie Museum of Natural History 34:194–209
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Prehistoric families in order Rodentia
- Kingdom: Animalia
- Phylum: Chordata
- Class: Mammalia
- Infraclass: Eutheria
- Superorder: Euarchontoglires
- Allomyidae
- Mylagaulidae
- Reithroparamyidae
- Parapedetidae
- Tamquammyidae
- Gobiomyidae
- Yuomyidae
- Chapattimyidae
- Tsaganomyidae
- "Baluchimyinae"
- Bathyergoididae
- Myophiomyidae
- Diamantomyidae
- Phiomyidae
- Kenyamyidae
- Cephalomyidae
- Eocardiidae
- Neoepiblemidae
- Heptaxodontidae
- Eurymylidae
- Alagomyidae
- Archetypomyidae
- Cocomyidae
- Ivanantoniidae
- Laredomyidae
- Ischyromyidae
- Theridomyidae
- Protoptychidae
- Zegdoumyidae
- Sciuravidae
- Cylindrodontidae
- Zelomyidae
See also: Category
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