Keywords: Mrs. Ples.jpg In a locked vault the Broom Room in the basement of the Transvaal Museum in Pretoria is the skull of Mrs Ples the first adult specimen of Australopithecus africanus discovered It was found on April 18 1947 by Dr Robert Broom at the Sterkfontein Caves near Johannesburg The name Mrs Ples comes from the original name given to the species Plesianthropus--almost human The skull is approximately 2 5 million years old Australopithecus africanus walked upright and had a brain approximately the size of a modern chimpanzee's This skull remains the most complete known cranium of the species The public exhibit in the museum is a cast replica of the fossil shown here http //www fourmilab ch/images/eclipse_2001/africaimages html 2001 John Walker Quote This document is in the public domain 150px cropped version John Walker STS 17 Transvaal Museum of Natural History Mrs Ples |