Australopithecus afarensis

Peter Schmid was a paleontologist at the Anthropological Institute in Zurich, Switzerland when Lucy was discovered. He studied Lucy for a significant amount time. That study concluded that "Lucy" was in fact a male as shown below:
* Contrary to Sts 14, delivery in AL 288-1 would have been more complicated than in modern humans, if not impossible, due to the protruding promontorium…. Consequently, there is more evidence to suggest that AL 288-1 was male rather than female. A female of the same species as AL 288-1 would have had a pelvis with a larger sagittal diameter and a less protruding sacral promontorium…. Overall, the broader pelvis and the more laterally oriented iliac blades of AL 288-1 would produce more favourable insertion sites for the climbing muscles in more heavily built males…. It would perhaps be better to change the trivial name to “Lucifer” according to the old roman god who brings light after the dark night because with such a pelvis, “Lucy” would apparently have been the last of her species (1995; 29:380, emp. added).
== References ==
Hausler, Martin and Peter Schmid (1995), “Comparison of the Pelvis of 
Sts 14 and AL 288-1: Implications for Birth and Sexual Dimorphism in 
Australopithecines,” Journal of Human Evolution, 29:363-383.