Dating dinosaur fossils
But when an ordinary person sees an apparent pterosaur flying overhead, the impression is overwhelming.
From the book Data from the 128 sighting reports demonstrates no significant number of hoaxes could have been involved.
Other critics, perhaps more familiar with the data, question certain aspects of the quality of the fossil record and of its dating.
These skeptics do not provide scientific evidence for their views.
Until recent years, however, it was rarely used with any dinosaur bones, for most Western scientists had long assumed that all dinosaurs and pterosaurs had become extinct many millions of years ago.
If the old assumptions were correct, it would seem pointless to try to date a fossil of such a creature by the radiocarbon process, for no C would be expected to still exist in it.
In the past 150 years they have not found any fossils that Darwin would not have expected.Abstract: The discovery of collagen in a Tyrannosaurus-rex dinosaur femur bone was recently reported in the journal Science.Its geologic location was the Hell Creek Formation in the State of Montana, United States of America.C) method of dating biological material was developed by the American physicist Willard Libby in the mid-20th century.He was awarded the Nobel Prize in Chemistry for that achievement.