Paleosol Material Prep (IMAGE) Southern Methodist University Caption SMU paleontologist Timothy S. Myers collected this plastic bag of paleosol matrix in the field. Myers performed chemical analysis of the ancient soil by grinding it to a powder, which is then fused into a glass disc for elemental analysis. Click here to read more. Credit (Timothy S. Myers, SMU) Usage Restrictions Please credit License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.