There was no crust of stalagmite overlying the mud in which the human skeleton was found, and no bones of other animals in the mud with the skeleton; but just before our visit in 1860 the tusk of a bear had been met with in some mud in a lateral Embranchment of the cave, in a situation precisely similar to b, Figure 1, and on a level corresponding with that of the human skeleton.
"The Antiquity of Man"
Charles Lyell