holophyleticadj.
/ˌhɒləʊfʌɪˈlɛtɪk/, U.S. /ˈˌhɑloʊˌfaɪˈlɛdɪk/ Taxonomy.
Of a group or taxon: including all and only the descendants of a common ancestor or ancestral group; monophyletic (in the narrower sense). Cf. paraphyletic adj.
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the world > life > biology > taxonomy > taxon > [adjective] > containing descendants of a common ancestor
paraphyletic1965
holophyletic1971
1971 P. D. Ashlock in Systematic Zool. 20 67 The criterion for monophyly proposed here sounds similar to Hennig's principle, which can be stated as follows: only synapomorphous characters delimit monophyletic (herein called holophyletic) groups.
1989 Nature 26 Jan. 382/1 All the currently available data indicate that cyanobacteria, prochlorophytes, and chloroplasts constitute a ‘holophyletic’ group.
1996 Evolution 50 2/2 I follow Ashlock in referring to..a monophyletic group as either holophyletic or paraphyletic.
This is a new entry (OED Third Edition, September 2003; most recently modified version published online March 2022).
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adj.1971