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That is, if they really are over 65 million years old, as the conventional wisdom says. A lone femur bone was excavated in 2004 in Cretaceous clay at 47 6 18N by 104 39 22W in Montana by the O. Miller team in 2005 to retrieve samples for C-14 testing. Collagen: Proteins that are the main component of connective tissue.
Manning noted that "scholars working on the early Iron Age and Biblical chronology in Jordan and Israel are doing sophisticated projects with radiocarbon age analysis, which argue for very precise findings. But our work indicates that it's arguable their fundamental basis is faulty -- they are using a calibration curve that is not accurate for this region." Applying their results to previously published chronologies, the researchers show how even the relatively small offsets they observe can shift calendar dates by enough to alter ongoing archaeological, historical and paleoclimate debates.
Schweitzer answered the challenge by testing with antibodies.
Her report in 2009 confirmed the presence of collagen and other proteins that bacteria do not make.
Carbon-14 is considered to be a highly reliable dating technique.
It's accuracy has been verified by using C-14 to date artifacts whose age is known historically.
Carbon-14 (C-14) dating of multiple samples of bone from 8 dinosaurs found in Texas, Alaska, Colorado, and Montana revealed that they are only 22,000 to 39,000 years old.