Menoceras ("Crescent Horns"[4]) is a genus of extinct, small rhinocerotids endemic to most of southern North America and ranged as far south as Panama during the early Miocene epoch.

Menoceras was much smaller than any living rhinoceros, with the genus being compared in size to a sheep[5] or a pig,[6] an with estimated bodymass of 313 kilograms (690 lb).

[citation needed] Menoceras roamed across a tropical, savanna-like grassland and plains environment that covered much of North America.

[8] Because of the massive accumulations of fossil bones of this animal, particularly at Agate Springs Nebraska, Menoceras may have lived in large herds.

It was found in the Gaillard Cut in Panama in "a 45 m thick section (narrow stratigraphic interval)"[12] It was reposited in the Smithsonian Institution, Washington, D.C. Other sites: Media related to Menoceras at Wikimedia Commons