William G Parker
I am a vertebrate paleontologist and biostratigrapher who primarily works in early Mesozoic rocks of the Colorado Plateau. I have B.S. and M.S. degrees in Geology from Northern Arizona University and a Ph.D. in Geology from the University of Texas at Austin. I have been the lead paleontologist at Petrified Forest National Park in Arizona since 2001.
Articles published in PeerJ
Microanatomy and paleohistology of the intercentra of North American metoposaurids from the Upper Triassic of Petrified Forest National Park (Arizona, USA) with implications for the taxonomy and ontogeny of the group
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This looks a lot like a phytosaur tooth. Can the authors further explain why it is not?