Abstract
The fossil species Pinus arunachalensis Khan & Bera (04 July, 2017: 4) was described on the basis of winged seed remains from the middle to late Miocene Siwalik sediments of the Dafla Formation exposed around West Kameng district in Arunachal Pradesh, eastern Himalaya. So far, the report provided the first ever fossil record of Pinus winged seeds from the Indian Cenozoic. However, the name P. arunachalensis Khan & Bera is an illegitimate later homonym of P. arunachalensis Srivastava (06 May, 2017: 86) (Art. 53.1 of the ICN, McNeill et al., 2012) (see also IFPNI, Doweld 2016). The latter name was used by a new extant species of Pinus Linnaeus (1753: 1000) from Arunachal Pradesh.