Dipterocarpaceous fossil leaves from Ghish River section in Himalayan foot-hills near Oodlabari, Darjeeling District, West Bengal

Abstract

The fossil leaves belonging to the extant genera Dipterocarpus Gaertn. and Shorea Roxb. of the family Dipterocarpaceae have been described from the Middle Siwalik sediments exposed in Ghish River near Oodlabari in Darjeeling district, West Bengal. The occurrence of both these genera in the Siwalik sediments is phytogeographically significant and suggests the prevalence of warm humid climate during the deposition of Siwalik sediments in this region.