Cocos sahnii Kaul, a fossil palm fruit, is validated and described from the Fuller's earth deposits of Kapurdi village of Rajasthan considered as Early Eocene in age. The fossil best resembles the genus Cocos, particularly Cocos nucifera L., which is now a common coastal element thriving in highly moist conditions. The recovery of this coconut-like fruit, along with earlier described evergreen taxa from the same formation, suggests the existence of typical tropical, warm and humid coastal conditions during the depositional period. The present arid to semi-arid climatic conditions occurring in Rajasthan indicate drastic climate change in the region during the Cenozoic. The possible time for the onset of aridity in the region which caused the total eradication of semi-evergreen to evergreen forests is discussed, as well as the palaeobiogeography of coconuts.

译文

:Cocos sahnii Kaul是一种化石棕榈果,已通过在拉贾斯坦邦的Kapurdi村的富勒大地矿床进行了验证和描述,该村被认为是早始新世。化石最像可可属,特别是可可椰子,现在已成为在高度潮湿的条件下蓬勃发展的常见沿海元素。从相同的形态中回收这种椰子样水果以及较早描述的常绿类群,表明在沉积期存在典型的热带,温暖和潮湿的沿海条件。拉贾斯坦邦目前的干旱至半干旱气候条件表明,新生代期间该地区发生了剧烈的气候变化。讨论了该地区干旱的发生时间,该时间导致了半常绿到常绿森林的彻底消灭,以及椰子的古生物地理学。

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