Tomarctus: Difference between revisions
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The genus currently contains two accepted species, ''Tomarctus brevirostris'' and ''Tomarctus hippophaga''. |
The genus currently contains two accepted species, ''Tomarctus brevirostris'' and ''Tomarctus hippophaga''. |
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''Tomarctus brevirostris'', |
''Tomarctus brevirostris'', synonymous with ''Aelurodon francisi'', was named by [[Edward Drinker Cope]] in 1873. Fossil specimens have been found as far south as [[Panama]], east to Plum Point, [[Maryland]], west to [[California]], and north to [[Montana]].<ref name="Pbdbbrevirostris">[http://paleodb.org/cgi-bin/bridge.pl?action=checkTaxonInfo&taxon_no=41246&is_real_user=1 Paleobiology Database: Tomarctus brevirostris]</ref> |
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''Tomarctus hippophaga'' was first described by Matthew and Cook in 1909 from the [[Trojan Quarry]], [[Olcott Formation]], [[Nebraska]]. Specimens have since been found as far west as [[California]] and as far north as the [[Montana]]/[[Alberta, Canada]] line.<ref name="Pbdbhippophaga">[http://paleodb.org/cgi-bin/bridge.pl?action=checkTaxonInfo&taxon_no=52381&is_real_user=1 Paleobiology Database: Tomarctus hippophaga]</ref> |
''Tomarctus hippophaga'' was first described by Matthew and Cook in 1909 from the [[Trojan Quarry]], [[Olcott Formation]], [[Nebraska]]. Specimens have since been found as far west as [[California]] and as far north as the [[Montana]]/[[Alberta, Canada]] line.<ref name="Pbdbhippophaga">[http://paleodb.org/cgi-bin/bridge.pl?action=checkTaxonInfo&taxon_no=52381&is_real_user=1 Paleobiology Database: Tomarctus hippophaga]</ref> |
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{{Reflist}} |
{{Reflist}} |
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*Martin, L.D. 1989. Fossil history of the terrestrial carnivora. Pages 536 - 568 in J.L. Gittleman, editor. Carnivore Behavior, Ecology, and Evolution, Vol. 1. Comstock Publishing Associates: Ithaca. |
*Martin, L.D. 1989. Fossil history of the terrestrial carnivora. Pages 536 - 568 in J.L. Gittleman, editor. Carnivore Behavior, Ecology, and Evolution, Vol. 1. Comstock Publishing Associates: Ithaca. |
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*Tedford, R.H. 1978. History of dogs and cats: A view from the fossil record. Pages 1 |
*Tedford, R.H. 1978. History of dogs and cats: A view from the fossil record. Pages 1 – 10 in Nutrition and Management of Dogs and Cats. Ralston Purina Co.: St. Louis. |
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*[http://paleodb.org/cgi-bin/bridge.pl?action=checkTaxonInfo&taxon_no=41246&is_real_user=1 - Bio One Data Base - Tomarctus] |
*[http://paleodb.org/cgi-bin/bridge.pl?action=checkTaxonInfo&taxon_no=41246&is_real_user=1 - Bio One Data Base - Tomarctus] |
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[[Category:Miocene extinctions]] |
[[Category:Miocene extinctions]] |
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[[Category:Prehistoric mammals of North America]] |
[[Category:Prehistoric mammals of North America]] |
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{{paleo-carnivora-stub}} |
{{paleo-carnivora-stub}} |
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Revision as of 19:18, 6 October 2012
| Tomarctus Temporal range: early to middle Miocene
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| Tomarctus temerarius skull | |
| Scientific classification | |
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| Phylum: | |
| Class: | |
| Order: | |
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| Genus: | Tomarctus Cope, 1873
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| Type species | |
| Tomarctus brevirostris | |
| Species[1] | |
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| File:Tomarctus range.pngjh;k; | |
| Range of Tomarctus based on fossil distribution | |
Tomarctus is a canine of the extinct subfamily Borophaginae which inhabited most of North America during the late Early Miocene to the Early Barstovian age of the Middle Miocene (23—16 mya). Tomarctus existed for approximately 6.83 million years.
Tomarctus evolved from the earlier genus Nothocyon.[citation needed] This animal shared a period of time and ecology with a variety of other bear dogs like the giant mustelid genus of bone-crushing canidae, Cynarctoides. As the bear dogs and giant mustelids became extinct, Tomarctus further radiated to fill a line of dogs which filled the hyena-like fruit eating and bone-crushing niches.
Species
The genus currently contains two accepted species, Tomarctus brevirostris and Tomarctus hippophaga.
Tomarctus brevirostris, synonymous with Aelurodon francisi, was named by Edward Drinker Cope in 1873. Fossil specimens have been found as far south as Panama, east to Plum Point, Maryland, west to California, and north to Montana.[2]
Tomarctus hippophaga was first described by Matthew and Cook in 1909 from the Trojan Quarry, Olcott Formation, Nebraska. Specimens have since been found as far west as California and as far north as the Montana/Alberta, Canada line.[3]
References
- ^ Wang, Xiaoming (1999-11-17). "Phylogenetic systematics of the Borophaginae" (PDF). Bulletin of the American Museum of Natural History. 243. Retrieved 2007-07-08.
{{cite journal}}: Unknown parameter|coauthors=ignored (|author=suggested) (help) - ^ Paleobiology Database: Tomarctus brevirostris
- ^ Paleobiology Database: Tomarctus hippophaga
- Martin, L.D. 1989. Fossil history of the terrestrial carnivora. Pages 536 - 568 in J.L. Gittleman, editor. Carnivore Behavior, Ecology, and Evolution, Vol. 1. Comstock Publishing Associates: Ithaca.
- Tedford, R.H. 1978. History of dogs and cats: A view from the fossil record. Pages 1 – 10 in Nutrition and Management of Dogs and Cats. Ralston Purina Co.: St. Louis.
- - Bio One Data Base - Tomarctus
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