Journal of Paleontology, Vol. 70, No. 6 (Nov., 1996), pp. 994-1003 (10 pages) Ptyctodonts from the Upper Devonian Martin Formation on Mt. Elden, northern Arizona, were hitherto known only from tooth ...
Humans have had a long history. 3.8 million years in the making, to be precise. From the primordial puddle to the modern day, here's how humans have evolved. The following is a review of the life ...
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