TERM: Description of glossary term.
Fish related glossary
synapomorphy
A character shared by two or more taxa that is inferred to have been present in their most recent common ancestor, whose ancestor in turn is inferred not to posses the character.
Riferimento
Miller, Robert Rush. 2006. "Freshwater Fishes of Mexico". University of Chicago Press, Chicago. 1-524 - (ffm01245)