See text Leptobos is an extinct genus of large bovine, known from the Late Pliocene and Early Pleistocene of Eurasia, extending from the Iberian Peninsula to northern China.

[1] Species of Leptobos weighed on average 320 kilograms (710 lb).

[2] The dietary preference across the genus includes species that were browsers,[3] grazers[4] and mixed feeders (both browsing and grazing).

[5] The first appearance of Leptobos in Europe around 3.6-3.5 million years ago is considered to define the beginning of the Villafranchian European faunal stage.

[1][8] Leptobos became extinct after being replaced by their descendant Bison during the Early Pleistocene, after a period of temporal overlap.