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species and genus
species and genera have been known to last for much longer than the
0.5-1.5 Ma quoted in the a recent post. only index fossil species
generally evolve that rapidly. for most of the paleontological
record, species last much longer and genera even longer still.
look at the longevity of some molluscs and plants for example.
Bonnie A.B. Blackwell, email@example.com
Dept of Geology, off: (718) 997-3332
Queens College, City University of New York, fax: (718) 997-3299
Dept of Earth \& Environmental Sciences, fax: (718) 997-3349
The Graduate Center, CUNY, fax: (718) 997-3513
Flushing, NY 11367-1597 messages: (718) 997-3300