The skeletal material from the bank at Bonasila consists now of
portions of three adult skulls, one male and two females, and of 13
bones of the male skeleton. All the specimens are more or less stained
by manganese and iron and all are distinctly heavier than normal,
showing some grade of fossilization. They closely resemble in all these
respects the numerous animal bones from the bank and in all differ from
the later surface burials of the place.