Käännöksiä ei löytynyt valitulle kohdekielelle.
| Komparatiivi | more plesiomorphic |
| Superlatiivi | most plesiomorphic |
(cladistics) Sharing a character state with an ancestral clade; primitive.
Phylogenies showing the terminology used to describe different patterns of ancestral and derived trait states.
(cladistics) Sharing a character state with an ancestral clade; primitive.
Imaginary cladogram. The yellow mask is a plesiomorphy for each living masked species, because it is ancestral. It is also a symplesiomorphy for them. But for the four living species as a whole, it is an apomorphy because it is not ancestral for all of them. The yellow tail is a plesiomorphy and symplesiomorphy for all living species.