Pollen analytical studies of the ODP Site 720 cores revealed the wide development of the coniferous forest, which mainly composed by Pinus, Picea, Abies and Cedrus deodara, along the Indus river since the early Pleistocene.
Supplement to: Yoshinori, Yasuda; Niitsuma, Nobuaki; Hayashida, Akira (1991): A pollen analysis of the Indus Deep Sea Fan from Site 720 cores. In: Prell, WL; Niitsuma, N; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 117, 283-290