Which of the following hominins is hotly debated as possibly the oldest, has ape-like features, a cranial capacity of 320-380cc (centimeters cubed), found in Chad, and also has a foramen magnum more closely positioned to the center of the skull base?
Australopithecus Africanus
Sahelanthropus tchadensis
Australopithecus Robustus
Australopithecus Afarensis
This hominin is visibly more gracile (smoother/smaller features), has a rounded, smooth vault (no crests or ridges on the cranium), a cranial capacity of 450-550cc (centimeters cubed), and a fossil specimen that includes Taung Child?
Australopithecus Africanus
Australopithecus Afarensis
Australopithecus Robustus
Sahelanthropus tchadensis