SK 46 is a partial cranium and palate of the species Paranthropus robustus. It was discovered in Swartkrans, South Africa by local quarrymen and Robert Broom in 1949. It is estimated to be 1.5-1.8 million years old. Characteristics include large cheek teeth and a sagittal crest. The large teeth and crest for attaching chewing muscles indicate a diet consisting mainly of coarse vegetable matter.
For more information, click here. Or, Try these sources:
- Larsen, Clark Spencer, Matter, Robert M, Gebo, Daniel L (1991). Human Origins: the fossil record. Waveland Press, Prospect Heights, IL. ISBN 0-88133-575-4.
- The Smithsonian Institution's Human Origins Program. Can be read here.