plesiomorph + -ic
plesiomorphic (comparative more plesiomorphic, superlative most plesiomorphic)
- (cladistics) Sharing a character state with an ancestral clade; primitive.
- 2000, Christine A. Nalepa and Claudio Bandi,"Paedomorphosis and Termite Evolution," in Termites: Evolution, Sociality, Symbioses, Ecology , →ISBN, page 68:
- [T]he cockroach Polyphaga may represent a condition more plesiomorphic than in other Dictyoptera, but it could as well be paedomorphic, and therefore more derived than in other Dictyoptera .