Subsequent discoveries of Australopithecus afarensis and associated ... or honed against the front edge of the lower premolar. Foramen magnum: A large hole at the underside of the skull where ...

and more downwardly oriented foramen magnum (hole where spinal cord exits brain), suggesting upright posture and locomotion ...

Though the fossil exhibited apelike features, the position of the foramen magnum, or the opening ... He characterized the species Australopithecus africanus and touted it as a missing link ...