1. Arya, R., 1997. Biostratigraphical correlation, paleoecological reconstruction and paleobiological study of Kasauli Formation, Lesser Himalaya, Himachal Pradesh. Unpublished PhD Thesis, Panjab University, Chandigarh, 204pp.
2. The geology of the Krol Belt and associated formations;Auden;Records of the Geological Survey of India,1934
3. Bagi, H., 1992. Contribution to the ostracodes and smaller foraminifera of the Subathu Formation of parts of Shimla Hills region. Unpublished PhD Thesis, Panjab University, Chandigarh, 265pp.
4. A new Eocene archaeocete (Mammalia, Cetacea) from India and the time of origin of whales;Bajpai;Proceedings of the National Academy of Sciences, USA,1998
5. On the Ypresian–Early Lutetian biostratigraphy and tectonic history of the Lesser Himalaya;Batra;Proceedings of the National Seminar on Tertiary Orogeny in Indian Subcontinent, Varanasi,1987