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Middle Eocene (Bartonian) vertebrate fauna from Bandah Formation, Jaisalmer Basin, Rajasthan, Western India
Historical Biology ( IF 1.4 ) Pub Date : 2020-06-18 , DOI: 10.1080/08912963.2020.1776708
Krishna Kumar 1 , Pragya Pandey 1 , Sunil Bajpai 2 , Debasish Bhattacharya 1 , Bindhyachal Pandey 3
Affiliation  

ABSTRACT

A small vertebrate faunal assemblage of late Middle Eocene (Bartonian) age is described from the Bandah Formation, a shallow marine deposit in the Jaisalmer Basin of Rajasthan state, Western India. The Bandah assemblage comprises representatives of selachians (sharks, rays), crocodilians, turtles and archaeocete cetaceans (archaic whales). The mammalian component of this fauna, though represented by fragmentary specimens, allows identification of two archaeocete taxa for the first time from the Palaeogene of Rajasthan: an unnamed protocetid close to Babiacetus and an andrewsiphiine remingtonocetid (Kutchicetus sp.). Occurrence of Eocene cetaceans in the Jaisalmer Basin brings to light a new, potentially rich cetacean-yielding horizon in India, and has the potential to allow a better understanding of early whale evolution in the Indian subcontinent.



中文翻译:

来自印度西部拉贾斯坦邦斋沙默尔盆地班达组的中始新世(巴顿阶)脊椎动物群

摘要

印度西部拉贾斯坦邦贾沙梅尔盆地的一个浅海沉积物班达组描述了中始新世晚期(巴顿阶)的小型脊椎动物群落。班达组合包括鲨类(鲨鱼、鳐鱼)、鳄鱼、海龟和古鲸类(古鲸)的代表。这种动物群的哺乳动物成分,虽然由零碎的标本代表,但允许首次从拉贾斯坦邦的古近纪识别出两种古鲸类群:一种靠近Babiacetus的未命名原鲸类和一种 andrewsiphiine remingtonocetid ( Kutchicetussp.)。斋沙默尔盆地始新世鲸类的出现揭示了印度一个新的、潜在丰富的鲸类产量地平线,并有可能让人们更好地了解印度次大陆的早期鲸鱼进化。

更新日期:2020-06-18
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