Himalayacetus: Difference between revisions
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''Himalayacetus'' lived in the ancient coastline of the ancient [[Tethys Ocean]] before the [[Indian Plate]] had collided with the [[Cimmerian Plate|Cimmeria]]n coast. Just like ''[[Gandakasia]]'', ''Himalayacetus'' is only known from a single jaw fragment, making comparisons to other Ambulocetids difficult.<ref>{{Cite web |
''Himalayacetus'' lived in the ancient coastline of the ancient [[Tethys Ocean]] before the [[Indian Plate]] had collided with the [[Cimmerian Plate|Cimmeria]]n coast. Just like ''[[Gandakasia]]'', ''Himalayacetus'' is only known from a single jaw fragment, making comparisons to other Ambulocetids difficult.<ref>{{Cite web |
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|last = Thewissen |
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|first = JGM |
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|title = Ambulocetidae: The First Costal Whales |
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|url = http://www.neomed.edu/DEPTS/ANAT/Thewissen/whale_origins/whales/Ambulocet.html |
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|accessdate = February 2013 |
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|deadurl = yes |
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|archiveurl = https://archive.is/20130403103619/http://www.neomed.edu/DEPTS/ANAT/Thewissen/whale_origins/whales/Ambulocet.html |
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|archivedate = 2013-04-03 |
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==Description== |
==Description== |
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Revision as of 02:54, 4 November 2017
| Himalayacetus Temporal range: Early Eocene,
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Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Mammalia |
| Order: | Artiodactyla |
| Infraorder: | Cetacea |
| Family: | †Ambulocetidae |
| Genus: | †Himalayacetus Bajpai & Gingerich, 1998[1] |
| Species: | †H. subathuensis
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| Binomial name | |
| †Himalayacetus subathuensis Bajpai & Gingerich, 1998[1]
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Himalayacetus is an extinct genus of carnivorous aquatic mammal of the family Ambulocetidae. The holotype was found in Himachal Pradesh, India, (31°00′N 77°00′E / 31.0°N 77.0°E: paleocoordinates 3°30′N 69°42′E / 3.5°N 69.7°E)[2] in what was the remnants of the ancient Tethys Ocean during the Early Eocene. This makes Himalayacetus the oldest archaeocete known, extending the fossil record of whales some 3.5 million years.[3]
Himalayacetus lived in the ancient coastline of the ancient Tethys Ocean before the Indian Plate had collided with the Cimmerian coast. Just like Gandakasia, Himalayacetus is only known from a single jaw fragment, making comparisons to other Ambulocetids difficult.[4]
Description
Upon its discovery, Himalayacetus was described as a pakicetid because the dentary has a small mandibular canal and a dentition similar to Pakicetus.[3] Thewissen, Williams & Hussain 2001 assigned Himalaycetus to the ambulocetids.
Etymology
Himalayacetus was named by Bajpai & Gingerich 1998. Its type is Himalayacetus subathuensis after the Himalayas, cetus, "whale", and the Subathu Formation, the type locality.[5]
Taxonomy
It was considered monophyletic by Uhen (2010). It was assigned to Pakicetidae by Bajpai and Gingerich (1998) and McLeod and Barnes (2008); and to Ambulocetidae by Thewissen et al. (2001) and Uhen (2010).[6]
Notes
- ^ a b Bajpai & Gingerich 1998.
- ^ Kuthar Nala (Eocene of India) in the Paleobiology Database. Retrieved June 2013.
- ^ a b Bajpai & Gingerich 1998, Abstract
- ^ Thewissen, JGM. "Ambulocetidae: The First Costal Whales". Archived from the original on 2013-04-03. Retrieved February 2013.
{{cite web}}: Check date values in:|accessdate=(help); Unknown parameter|deadurl=ignored (|url-status=suggested) (help) - ^ Bajpai & Gingerich 1998, p. 15464
- ^ Himalayacetus in the Paleobiology Database. Retrieved June 2013.
References
- Bajpai, Sunil; Gingerich, Philip D (December 1998). "A new Eocene archaeocete (Mammalia, Cetacea) from India and the time of origin of whales". PNAS. 95 (26): 15464–68. doi:10.1073/pnas.95.26.15464. OCLC 678707438.
{{cite journal}}: Invalid|ref=harv(help) - Thewissen, J. G. M.; Williams, E. M.; Hussain, S.T. (2001). "Eocene mammal faunas from northern Indo-Pakistan". Journal of Vertebrate Paleontology. 21 (2): 347–66. doi:10.1671/0272-4634(2001)021[0347:EMFFNI]2.0.CO;2. OCLC 631973716.
{{cite journal}}: Invalid|ref=harv(help)
Archaeocete genera by family | |||||||
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| Pakicetidae | |||||||
| Ambulocetidae | |||||||
| Remingtonocetidae | |||||||
| Protocetidae |
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| Basilosauridae |
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