The Geological Society of America

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High-precision U-Pb zircon geochronology of the Late Triassic Chinle Formation, Petrified Forest National Park (Arizona, USA): Temporal constraints on the early evolution of dinosaurs
Ramezani,J. et al.
Geological Society of America Bulletin(2011),123(11-12):2142
http://dx.doi.org/10.1130/B30433.1

The Geological Society of America
The Geological Society of America
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