Dating dinosaur fossils
is actually that of microbes that have replaced the original dinosaur tissue, as sceptics of her findings have proposed.
femur showing fragment BB-1 collected for analysis by Fassett in 1998 (photograph by J. Geologic Assessment of Coal in the Colorado Plateau: Arizona, Colorado, New Mexico, and Utah: U.
The current method paleontologists use to date dinosaur fossils is a technique called relative chronology.
The method estimates a fossils age relative to the known age of deposits of sediment in which it was found.
Antonio Simonetti, a research associate professor in the Department of Civil Engineering and Geological Sciences at the University of Notre Dame, is the coauthor of an important new paper describing a novel method for age dating dinosaur fossils.
Simonetti and colleagues from the University of Alberta used a U-Pb (uranium-lead) dating technique to analyze a fossilized dinosaur bone discovered in New Mexico.