SK 48
SK 48 is a fossilized skull of the species Paranthropus robustus. It was found at Swartkrans, South Africa, in 1950 by a quarry-worker. Estimated to be about 1.8 million years old, it is characterized by a robust appearance, bulging and continuous brow, broad flat face and a deep jaw with large chewing teeth/muscle attachments. It retained a canine, premolar and three molars. SK 48 was an adult at the time of death, indicated by all three molars being present. In 1952, paleontologist Robert Broom inferred that it is a female due to the diminutive sagittal crest.
Source: Wikipedia
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