- Joint nature. - The correspondence of common descent; -- a term used to
supersede homology by Lankester, who also used homoplasy to denote any
superinduced correspondence of position and structure in parts
embryonically distinct (other writers using the term homoplasmy). Thus,
there is homogeny between the fore limb of a mammal and the wing of a
bird; but the right and left ventricles of the heart in both are only
in homoplasy with each other, these having arisen independently since
the divergence of both groups from a univentricular ancestor.
Definition
[ n.]