Original paper

Contribution to the Neogene fossil wood record and palaeoecological understanding of Bangladesh

Sen, Illora;Kumar Parua, Dipak;Bera, Subir;Sultan-ul-Islam, MD.;Poole, Imogen

Abstract

Thirteen taxa of fossil dicotyledonous woods are described from the Tipam Sandstone (Mio-Pliocene) and Dupi Tila Formations (Plio-Pliestocene) of Bangladesh. Their anatomical characters suggest affinities to Anacardiaceae, Burseraceae, Clusiaceae, Dipterocarpaceae, Fabaceae, Lecythidaceae, Meliaceae and Moraceae. These fossil woods demonstrate a high familial and generic similarity with the extant floras of Southern Asia. This floristic link provides support to the hypothesis that the Neogene-Quarternary landscape was dominated by tropical to subtropical, semi-evergreen to evergreen forest, thriving under warm climatic conditions and high precipitation. The vegetation would have been similar to that of today but possibly more diverse.

Keywords

Xylotomyfossil woodNeogenePalaeoecologyBangladesh