Ivanantonia: Difference between revisions
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{{Short description|Extinct genus of rodents}} |
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{{Taxobox |
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| phylum = [[Chordata]] |
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| classis = [[Mammal]]ia |
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| ordo = [[Rodent]]ia |
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| extinct = yes |
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| familia = †'''Ivanantoniidae''' |
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| genus = †'''''Ivanantonia''''' |
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| binomial = †''Ivanantonia efremovi'' |
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| synonyms_ref = {{citation needed|date=}} |
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'''''Ivanantonia''''' is the only [[genus]] in the extinct [[rodent]] [[Family (biology)|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 [[premolar]]s and in showing evidence of [[propaliny|propalinal]] chewing |
'''''Ivanantonia''''' is the only [[genus]] in the extinct [[rodent]] [[Family (biology)|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 [[premolar]]s and in showing evidence of [[propaliny|propalinal]] chewing.<ref name=":0">{{Cite journal |last1=Hartenberger |first1=Jean-Louis |last2=Dashzeveg |first2=Demberelyin |last3=Martin |first3=Thomas |date=1 April 1997 |title=What isIvanantonia efremovi (Rodentia, Mammalia)? |url=https://doi.org/10.1007/BF03022555 |journal=Paläontologische Zeitschrift |language=en |volume=71 |issue=1 |pages=135–143 |doi=10.1007/BF03022555 |bibcode=1997PalZ...71..135H |issn=}}</ref> The relationships of ''Ivanantonia'' are unclear. It was described as a [[Ctenodactyloidea|ctenodactyloid]]. Hartenberger et al. suggested a potential relationship to the [[Muroidea|muroid]] ''[[Nonomys]]'' but declined to assign Ivanantoniidae to a suborder within [[Rodent]]ia.<ref name=":0" /> |
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==References== |
==References== |
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{{Reflist}} |
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*Hartenberger, J.-L., D. Dashzeveg, and T. Martin. 1997. What is ''Ivanantonia efremovi'' (Rodentia, Mammalia)? Paläontologische Zeitschrift, 71(1/2): 135-143. |
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*{{cite journal|doi=10.1007/bf03022555|title=What is ''Ivanantonia efremovi'' (Rodentia, Mammalia)? |year=1997 |last1=Hartenberger |first1=Jean-Louis |last2=Dashzeveg |first2=Demberelyin |last3=Martin |first3=Thomas |journal=Paläontologische Zeitschrift |volume=71 |issue=1–2 |pages=135–143 |bibcode=1997PalZ...71..135H |s2cid=83663943 }} |
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*Shevyreva, N.S. 2007. 1989. New rodents (Ctenodactyloidea, Rodentia, Mammalia) from the Lower Eocene of Mongolia. Paleontological Journal, 3: |
*Shevyreva, N.S. 2007. 1989. New rodents (Ctenodactyloidea, Rodentia, Mammalia) from the Lower Eocene of Mongolia. Paleontological Journal, 3: 60–72. |
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==Further reading== |
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{{rodents}} |
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*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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{{rodent-stub}} |
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{{Prehistoric rodents}} |
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{{Taxonbar|from=Q6098042|from2=Q3804820|from3=Q19282480}} |
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[[Category:Fossils of Mongolia]] |
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[[Category:Fossil taxa described in 1989]] |
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Latest revision as of 17:58, 5 July 2024
| Ivanantonia Temporal range:
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Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Mammalia |
| Order: | Rodentia |
| Family: | incertae sedis |
| Genus: | †Ivanantonia Shevyreva, 1989 |
| Species: | †I. efremovi
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| Binomial name | |
| †Ivanantonia efremovi Shevyreva, 1989
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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
[edit]- ^ 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
[edit]- 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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