Himalayacetus

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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, (Script error: No such module "Coordinates".: paleocoordinates Script error: No such module "Coordinates".)[1] 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.[2]

Himalayacetus lived in the ancient coastline of the ancient Tethys Ocean before the Indian Plate had collided with the Cimmerian coast. Like Gandakasia, Himalayacetus is only known from a single jaw fragment, making comparisons to other ambulocetids difficult.[3]

Description

Upon its discovery, Himalayacetus was described as a pakicetid because the dentary has a small mandibular canal and a dentition similar to Pakicetus.[2] Script error: No such module "Footnotes". assigned Himalaycetus to the ambulocetids.

Etymology

Himalayacetus was named by Script error: No such module "Footnotes".. Its type is Himalayacetus subathuensis after the Himalayas, cetus, "whale", and the Subathu Formation, the type locality.[4]

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).[5]

Notes

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  1. Template:Paleodb. Retrieved June 2013.
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  5. Template:Paleodb. Retrieved June 2013.

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References

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