Bos acutifrons

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Bos acutifrons
Temporal range: Middle Pleistocene
Siwalik ox (Bos acutifrons) Wild oxen, sheep and goats of all lands, living and extinct (Page 21, Fig. 2) BHL9369940 (cropped).jpg
Bos acutifrons skull
Scientific classification edit
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Artiodactyla
Family: Bovidae
Subfamily: Bovinae
Genus: Bos
Species: B. acutifrons
Binomial name
Bos acutifrons
Lydekker, 1898

Bos acutifrons is the most ancient representative of the genus Bos. Fossils of Bos acutifrons are found in middle Pleistocene-aged strata of India. It is widely accepted that from this species all later species arose. Between 1.5 and 2 million years ago the aurochs probably descended from this species.


  • Van Vuure, Cis. 2003. De Oeros – Het spoor terug, Cis van Vuure, Wageningen University and Research Centrum / Ministry of the Flemish Community, Brussels & Wageningen.
  • Van Vuure, C. 2005. Retracing the Aurochs: History, Morphology and Ecology of an extinct wild ox. Sofia-Moscow:Pensoft Publishing.