different between paedomorphic vs plesiomorphic

English

Alternative forms

• pædomorphic
• pedomorphic

Etymology

From paedo- +? -morphic.

Pronunciation

• (UK) IPA^(key): /pi?d?(?)?m??f?k/
• (US) IPA^(key): /?pid??m??f?k/, /?p?d??m??f?k/
• ,
• Rhymes: -??(r)f?k

Adjective

paedomorphic (comparative more paedomorphic, superlative most paedomorphic)

1. Of, relating to, or resulting from the retention of juvenile characteristics by an adult. [from 19th c.]
   • 2011, Steven Pinker, The Better Angels of Our Nature, Penguin 2012, p. 744:

     Based on pedomorphic changes in the fossils of Paleolithic humans, Wrangham has suggested that a similar process has been taking place in human evolution during the past thirty to fifty thousand years, and may still be taking place.

Synonyms

• neotenic

Related terms

• paedomorphism, pedomorphism

English

Etymology

plesiomorph +? -ic

Pronunciation

• (General American) IPA^(key): /?plizio??m??f?k/
• Hyphenation: ple?sio?mor?phic

Adjective

plesiomorphic (comparative more plesiomorphic, superlative most plesiomorphic)

1. (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 [1], ?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 [72].

2. plesiomorphous

Synonyms

• primitive, basal

Derived terms

• plesiomorphically

Related terms

• plesiomorphy
• apomorphic
• paedomorphic