David M. Raup Quotes

The charge that the construction of the geologic scale involves circularity has a certain amount of validity. ...Thus, the procedure is far from ideal and the geologic ranges are constantly being revised (usually extended) as new occurrences are found.
David M. Raup
David M. Raup

Quotes to Explore

This site uses cookies. By continuing to use this website, you agree to our policies regarding the use of cookies.