Oxetocyon: Difference between revisions
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'''''Oxetocyon''''' is an early member of the subfamily [[Borophaginae]], an extinct subgroup of the family [[Canidae]], which includes living [[dog]]s, [[wolf|wolves]], and [[fox]]es. Only a single species, '''''O. cuspidatus''''', is known. Fossils of ''Oxetocyon'' are rare and, as a result, the [[genus]] is poorly known, and only the [[teeth]], [[dentary|dentaries]], and a fragmentary [[skull]] have been reported. All specimens come from rocks assigned to the [[Whitneyan]] and [[Arikareean]] [[North American Land Mammal Age| |
'''''Oxetocyon''''' is an early member of the subfamily [[Borophaginae]], an extinct subgroup of the family [[Canidae]], which includes living [[dog]]s, [[wolf|wolves]], and [[fox]]es. Only a single species, '''''O. cuspidatus''''', is known. Fossils of ''Oxetocyon'' are rare and, as a result, the [[genus]] is poorly known, and only the [[teeth]], [[dentary|dentaries]], and a fragmentary [[skull]] have been reported. All specimens come from rocks assigned to the [[Whitneyan]] and [[Arikareean]] [[North American Land Mammal Age|NALMAs]] ([[Oligocene]]: {{Mya|32-28|mya}}) of [[Nebraska]] and [[South Dakota]]. |
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The teeth of ''Oxetocyon'' indicate a somewhat [[omnivorous]] ([[Hypocarnivore|hypocarnivorous]]) diet, as is found in the living [[Raccoon Dog]], and suggest a potential relationship to the unusual borophagine ''[[Otarocyon]]''. ''Oxetocyon'' is distinguished from ''Otarocyon'' by its own set of [[dentition|dental]] specializations for an omnivorous diet, particularly by the presence of a cleft that divides each upper [[Molar (tooth)|molar]] into front and back halves. |
The teeth of ''Oxetocyon'' indicate a somewhat [[omnivorous]] ([[Hypocarnivore|hypocarnivorous]]) diet, as is found in the living [[Raccoon Dog]], and suggest a potential relationship to the unusual borophagine ''[[Otarocyon]]''. ''Oxetocyon'' is distinguished from ''Otarocyon'' by its own set of [[dentition|dental]] specializations for an omnivorous diet, particularly by the presence of a cleft that divides each upper [[Molar (tooth)|molar]] into front and back halves. |
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==References |
== References == |
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{{nofootnotes|date=February 2009}} |
{{nofootnotes|date=February 2009}} |
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*Wang, X., R.H. Tedford, and B.E. Taylor. 1999. [http://hdl.handle.net/2246/1588 Phylogenetic systematics of the Borophaginae (Carnivora, Canidae)]. Bulletin of the American Museum of Natural History, 243:1-391. |
*Wang, X., R.H. Tedford, and B.E. Taylor. 1999. [http://hdl.handle.net/2246/1588 Phylogenetic systematics of the Borophaginae (Carnivora, Canidae)]. Bulletin of the American Museum of Natural History, 243:1-391. |
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Revision as of 22:27, 15 May 2009
| Oxetocyon Temporal range:
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| Genus: | †Oxetocyon Green, 1954
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| Species: | †O. cuspidatus
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| Binomial name | |
| †Oxetocyon cuspidatus Green, 1954
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Oxetocyon is an early member of the subfamily Borophaginae, an extinct subgroup of the family Canidae, which includes living dogs, wolves, and foxes. Only a single species, O. cuspidatus, is known. Fossils of Oxetocyon are rare and, as a result, the genus is poorly known, and only the teeth, dentaries, and a fragmentary skull have been reported. All specimens come from rocks assigned to the Whitneyan and Arikareean NALMAs (Oligocene: 4 mya) of Nebraska and South Dakota.
The teeth of Oxetocyon indicate a somewhat omnivorous (hypocarnivorous) diet, as is found in the living Raccoon Dog, and suggest a potential relationship to the unusual borophagine Otarocyon. Oxetocyon is distinguished from Otarocyon by its own set of dental specializations for an omnivorous diet, particularly by the presence of a cleft that divides each upper molar into front and back halves.
References
 | This article includes a list of references, related reading, or external links, but its sources remain unclear because it lacks inline citations. (February 2009) |
- Wang, X., R.H. Tedford, and B.E. Taylor. 1999. Phylogenetic systematics of the Borophaginae (Carnivora, Canidae). Bulletin of the American Museum of Natural History, 243:1-391.
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