In cladistics, a symplesiomorphy or symplesiomorphic character is a trait which is shared (a symmorphy) between two or more taxa, but which is also shared with other taxa which have an earlier last common ancestor with the taxa under consideration.
A symplesiomorphy or symplesiomorphic character is a trait. This is in cladistics. This trait is shared (a symmorphy) between two or more taxa, but which is also shared with other taxa. This other taxa have an earlier last common ancestor with the taxa under consideration.