An Illustrated and Cross-Referenced Glossary of
Malacological and Conchological Terms
|by Paul S. Mikkelsen|
An APOMORPHY shared by two or more groups which originated in their last common ancestor.
See the Paleos website for greater detail.
|Copyright ©Paul S. Mikkelsen, All Rights Reserved||Return to Home Page | Return to Top||Over 1700 Terms in the Glossary!|