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Re: Meaning of Term, 2#
> What does the term "synapomorphy" mean? It was not in my dictionary.
It means "shared derived character". More specifically, it is a
character shared by two or more taxa that distinghuishes them jointly
from an ancestral form.
It is opposed to symplesiomorphy, which is a "shared ancestral
character", that is one that is shared due to *retention* from
the ancestral form, rather than due to shared innovation.
The peace of God be with you.