What is "megalotragus"

Megalotragus was a genus of very large extinct African alcelaphines that occurred from the Pliocene to early Holocene. It resembled modern hartebeests, but differed in larger body size, it includes the largest bovids in the tribe Alcelaphini, reaching a shoulder height of . The genus consists of three species of which Megalotragus priscus survived until the early Holocene 7.500 C14yBP.