Himalayacetus
Himalayacetus
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Himalayacetus Temporal range: Early Eocene, 53.5 Ma PreЄ Є O S D C P T J K Pg N ↓ | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Mammalia |
| Order: | Artiodactyla |
| Infraorder: | Cetacea |
| Family: | †Ambulocetidae |
| Genus: | †Himalayacetus Bajpai & Gingerich, 1998[1] |
| Species: | †H. subathuensis |
Binomial name | |
†Himalayacetus subathuensis Bajpai & Gingerich, 1998[1] | |
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 / 31.0; 77.0: paleocoordinates 3°30′N 69°42′E / 3.5°N 69.7°E / 3.5; 69.7)[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]
Contents
1 Description
2 Etymology
3 Taxonomy
4 Notes
5 References
Description[edit]
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[edit]
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[edit]
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[edit]
^ ab Bajpai & Gingerich 1998.
^ Kuthar Nala (Eocene of India) in the Paleobiology Database. Retrieved June 2013.
^ ab Bajpai & Gingerich 1998, Abstract
^ Thewissen, JGM. "Ambulocetidae: The First Costal Whales". Archived from the original on 2013-04-03. Retrieved February 2013. Check date values in:|accessdate=(help).mw-parser-output cite.citationfont-style:inherit.mw-parser-output qquotes:"""""""'""'".mw-parser-output code.cs1-codecolor:inherit;background:inherit;border:inherit;padding:inherit.mw-parser-output .cs1-lock-free abackground:url("//upload.wikimedia.org/wikipedia/commons/thumb/6/65/Lock-green.svg/9px-Lock-green.svg.png")no-repeat;background-position:right .1em center.mw-parser-output .cs1-lock-limited a,.mw-parser-output .cs1-lock-registration abackground:url("//upload.wikimedia.org/wikipedia/commons/thumb/d/d6/Lock-gray-alt-2.svg/9px-Lock-gray-alt-2.svg.png")no-repeat;background-position:right .1em center.mw-parser-output .cs1-lock-subscription abackground:url("//upload.wikimedia.org/wikipedia/commons/thumb/a/aa/Lock-red-alt-2.svg/9px-Lock-red-alt-2.svg.png")no-repeat;background-position:right .1em center.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registrationcolor:#555.mw-parser-output .cs1-subscription span,.mw-parser-output .cs1-registration spanborder-bottom:1px dotted;cursor:help.mw-parser-output .cs1-hidden-errordisplay:none;font-size:100%.mw-parser-output .cs1-visible-errorfont-size:100%.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registration,.mw-parser-output .cs1-formatfont-size:95%.mw-parser-output .cs1-kern-left,.mw-parser-output .cs1-kern-wl-leftpadding-left:0.2em.mw-parser-output .cs1-kern-right,.mw-parser-output .cs1-kern-wl-rightpadding-right:0.2em
^ Bajpai & Gingerich 1998, p. 15464
^ Himalayacetus in the Paleobiology Database. Retrieved June 2013.
References[edit]
 | Wikispecies has information related to Himalayacetus |
.mw-parser-output .refbeginfont-size:90%;margin-bottom:0.5em.mw-parser-output .refbegin-hanging-indents>ullist-style-type:none;margin-left:0.mw-parser-output .refbegin-hanging-indents>ul>li,.mw-parser-output .refbegin-hanging-indents>dl>ddmargin-left:0;padding-left:3.2em;text-indent:-3.2em;list-style:none.mw-parser-output .refbegin-100font-size:100%
Bajpai, Sunil; Gingerich, Philip D (December 1998). "A new Eocene archaeocete (Mammalia, Cetacea) from India and the time of origin of whales" (PDF). PNAS. 95 (26): 15464–68. doi:10.1073/pnas.95.26.15464. OCLC 678707438.
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.
Archaeocete genera by family | |||||||
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| *_Phylum_Chordata *_Subphylum_Vertebrata *_Class_Mammalia *_Order_Artiodactyla">
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| Pakicetidae |
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| Ambulocetidae |
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| Remingtonocetidae |
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| Protocetidae |
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| Basilosauridae |
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Category
Portal | This prehistoric cetacean-related article is a stub. You can help Wikipedia by expanding it. |
Categories:
- Ambulocetidae
- Fossil taxa described in 1998
- Prehistoric cetacean genera
- Extinct animals of India
- Prehistoric cetacean stubs
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