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 ...
A new study by Case Western Reserve University PhD student Russell Engelman published in PeerJ Life & Environment attempts to address a persistent problem in paleontology – what were the size of ...
The acanthothoracid Hagiangella goujeti Janvier, 2005, has been described exclusively on the basis of isolated thoracic plates from the Lochkovian (Lower Devonian) Khao Loc Formation of Tung Vai, Ha ...
There's something fishy about the human jawbone – it has its origins in the placodermi, a jowly species of fish that lived 400 million years ago. A group of Swedish and Chinese researchers have drawn ...
Giving birth to live young is thought to mainly occur in mammals and sharks, but a new study suggests that it was once a common mechanism for reproduction. A large group of ancient fish carried its ...
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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