Extinct genus of mammals
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. Species of "Leptobos" weighed on average . The dietary preference across the genus includes species that were browsers, grazers and mixed feeders (both browsing and grazing). 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. "Leptobos" is considered to be closely related to the insular genus "Epileptobos" from the Pleistocene of Java"", and is considered to be ancestral to "Bison". "Leptobos" became extinct after being replaced by their descendant "Bison" during the Early Pleistocene, after a period of temporal overlap. ""Leptobos" syrticus" from Libya likely belongs in a different genus.
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