Modern cells do not assemble themselves from preformed constituents, and they would not have done so in the past.
This helps us to understand how that species fits into the evolutionary tree of change; when did they first appear and when did the last of their kind walk this Earth? I posted comments that he at first answered and then removed when he saw they demolished his position. These results corroborated established paleontological theories that assert that these fossiles presumably were 'washed away' over long periods of time by ground water, replacing the original bones with other substances such as the minerals naturally present in the water, implying that this sample could not tell you anything about when a dinosaur lived or rather, died. Each of the clay pieces had been individually made, without molds, skillfully sculptured, and carefully decorated. In the article by Leppert, we find: The best process Accelerator Mass Spectrometry was used to date them. Ernest Kwok was made chairman of the committee overseeing the microscopy lab, and became Armitage's new supervisor.