Palm leaves from the Late Oligocene sediments of Makum Coalfield, Assam, India

Journal of Earth system science

Gaurav Srivastava1¹  R C Mehrotra1¹  Hugues Bauer2² 

[1] Birbal Sahni Institute of Palaeobotany, 53 University Road, Lucknow 226 007, India.$$;Bureau de Recherche G´eologiques et Mini`eres (BRGM) Regolith and Reservoir Geology Division, 3 Avenue C. Guillemin, BP 36009, 45060 Orl´eanscedex 2, France.$$

关键词: Arecaceae;    Assam;    India;    Late Oligocene;    Makum Coalfield;    fossil palms;    Tikak Parbat Formation;    northeast India.;   

DOI  :  

学科分类：天文学(综合)

来源: Indian Academy of Sciences

【 摘 要 】

Two new palm leaf impressions, cf. Iguanura wallichiana and Palmacites makumensis sp. nov. are described from the Makum Coalfield, Tinsukia District, Assam. They belong to the Tikak Parbat Formation being considered as Late Oligocene (Chattian 28–23 Myr) in age. Their presence, along with the other known fossil records indicates that CMMT (cold month mean temperature) was not less than 18°C with plenty of rainfall, in the region during the period of deposition.

【 授权许可】

Unknown