Fossil woods resembling modern woods of Homalium, Sterculia, Vitex, and a member of Lauraceae are described here from the Tipam sandstones of Rath Tila, near the town of Hailakandi, district Cachar, Assam. Modern equivalents of all these fossils are still found in the forests of Assam or Chittagong. The fossil woods of Homalium and Vitex are known for the first time from India and abroad.

Fossil woods representing Pometia of Sapindaceae, Mangifera of Anacardiaceae and Lagerstroemia of Lythraceae are described here from the Tertiary beds near Hailakandi, Assam. Petrified woods of Pometia and Lagerstroemia are known for the first time from India. These are of interest with regard to their palaeogeographical distribution.

Fossil woods representing the genera Elaeocarpus, Mallotus, Afzelia, Bursera, Kayea and Terminalia have been identified from the Tertiary of Tipam sandstones in Assam. Their presence in Eastern India during the Upper Miocene is note-worthy from the standpoint of their palaeographical distribution. The fossil wood of Bursera is known for the first time from India and abroad.

Fossil woods resembling those of Diospyros-Maba and Anisoptera are described here from Tipam sandstones near the town of Hailakandi district Cachar, Assam. These woods are noteworthy owing to their fine structural preservation and from the standpoint of their palaeogeographical distribution. Although Diospyros-Maba is presently found in the region of Assam, no Anisoptera now grows in India proper.

Fossil wood of Gluloxylon burmense (Hold.) Chowdhury is described here from a new locality of Hailakandi in district Cachar, Assam. A critical review of the hitherto described species of the genus Gluloxylon is made, based on an exhaustive study of the modern woods of Glula and Melanorrhoea.