Helictite - Journal of Australasian Speleological Researchcovering a period from 45,000 B.C. (Middle...
21
Helictite - Journal of Australasian Speleological Researchcovering a period from 45,000 B.C. (Middle Paleolithic) to 1,300 A.D. (Early Iron). He believes that the situation at Niah