Endemism due to climate change: Evidence from Poeciloneuron Bedd. (Clusiaceae) leaf fossil from Assam, India

Journal of Earth system science

Gaurav Srivastava1¹  R C Mehrotra1¹ 

[1] Birbal Sahni Institute of Palaeobotany, 53 University Road, Lucknow 226 007, India.$$

关键词: Climate change;    Clusiaceae;    leaf;    Makum Coalfield;    Tikak Parbat Formation.;   

DOI  :  

学科分类：天文学(综合)

来源: Indian Academy of Sciences

【 摘 要 】

A fossil leaf resembling Poeciloneuron indicum Bedd. (Clusiaceae) is described from the Late Oligocene (Chattian 28.4–23 Myr) sediments of Assam. The modern analogue is endemic to the Western Ghats which is situated in the same palaeolatitude. Its presence, along with other known fossil records, indicates that the seasonality in temperature was less pronounced and CMMT (cold month mean temperature) was not less than 18°C with plenty of rainfall, in the region during the period of deposition. The study also indicates that the plant phenology is sensitive towards climate change. The present study is in congruence with the global data.

【 授权许可】

Unknown