Members of the Paleochronology group presented their findings at the 2012 Western Pacific Geophysics Meeting in Singapore, August 13-17, a conference of the American Geophysical Union (AGU) and the Asia Oceania Geosciences Society (AOGS).
Since dinosaurs are thought to be over 65 million years old, the news is stunning - and more than some can tolerate.
Radiocarbon dating of bone collagen is challenging because its preservation is influenced by many environmental factors, including temperature, moisture, p H, and microbial activity.
Bone organic matter could be altered physically and chemically through absorbing dissolved organic carbon and "fusing" humic substances with collagen compounds through humification processes.
The preliminary results from the ISGS analysis of large numbers of human bones collected from Illinois show that Py-V and Py-R fractions yield identical C dates for Archaic human bones.