1.(biologia)morfologiseen samankaltaisuuteen perustuva keinotekoinen taksonominen suku eliöille, joiden todelliset sukulaissuhteet ovat epäselvät
1.an artificial taxonomic category established on the basis of morphological resemblance for organisms of obscure true relationships especially fossil forms
2.(biology) an artificial taxonomic category for organisms of which the true relationships are obscure