Saxena, R.K. and Rao, M.R.,
1984
Palynology of the Barail (Oligocene) and Surma (Lower Miocene) sediments exposed along Sonapur-Badarpur road section, Jainkia Hills (Meghalaya) and Cachar (Assam), part I. Dinoflagellate cysts.
Palaeontological Society of India, Journal, v.29, p.52-62, pl.1-2.