The Indian aurochs is known from fossil and subfossil remains. These show relatively slight differences to the Eurasian aurochs (B. p. primigenius).Raphael Pumpelly: Explorations in Turkestan: Expedition of 1904 : vol.2, p. 361 The Indian aurochs was probably smaller than its Eurasian counterpart but had proportionally larger horns.Cis van Vuure: Retracing the Aurochs - History, Morphology and Ecology of an extinct wild Ox. 2005, . Because the range of the aurochs probably was continuous from Portugal to India, it is uncertain whether there was a clear distinction or a continuum between the Eurasian and Indian subspecies.
