The Eocursor name means Dawn Runner. It was a primitive late triassic dinosaur of the order Ornithischia. It was found that the Eosursor was one of the oldest Ornithischia's to exist due to the Partial Fossils that have been found in the lower Elliot Foundation of Africa. Originally they were found in 1993, but only described fourteen years later in 2007 by Richard J. Butler, M.H Smith, and David B. Norman. Often skull fragments, spinal elements, pelvis, and long leg fossils were found in the area's it was common in.

The Eocursor was roughly one meter long and there is evidence of a significantly longer tibia which says that it must have been a fast runner. The Eocursor also had Triangular Teeth showing that it may have been a omnivore.