paraphyletic


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Related to paraphyletic: monophyletic, Monophyly, Monophyletic group

paraphyletic

(păr′ə-fī-lĕt′ĭk)
adj.
Of or relating to a group of taxa that includes the common ancestor of all the members but not all descendants of that ancestor.

par′a·phy·let′i·cal·ly adv.
par′a·phy′ly (păr′ə-fī′lē, pə-răf′ə-lē) n.

paraphyletic

(evolutionary taxonomy) (of a group) having evolved from a single ancestral form but not including all the descendents.
References in periodicals archive ?
at the same taxonomic level as mammal) and fish constitutes a paraphyletic group, i.
as a very homogenous and cladistically monophyletic group [13,14,15,47,48,51,52], whereas it considered the other three families as paraphyletic [33,32].
But molecular phylogenetic studies have shown that Phyllanthus is paraphyletic over Glochidion.
In most, if not all cases, the elimination is of paraphyletic (or polyphyletic) assemblages of taxa (e.
However, Beaman & Judd (1996) suggested that this subgenus is paraphyletic, and transferred T.
Thus, here, we also test the hypothesis that male urogenital duct anatomy will support a more traditional salamander phylogeny with a monophyletic Salamandroidea over a more controversial phylogeny with a paraphyletic Salamandroidea.
This study confirmed Mesoveliidae as being the sister group to all other families of Gerromorpha and also the close relationship between the Gerridae and Veliidae, but suggested that the superfamilies Gerroidea (Hermatobatidae + Gerridae + Veliidae) and Hydrometroidea (Paraphrynoveliidae + Macroveliidae + Hydrometridae), the family Veliidae, and the gerrid subfamily Cylindrostethinae were paraphyletic entities, and that Gerrinae, Haloveliinae, Ocelloveliinae, Paraphrynoveliidae, and Veliinae lacked convincing morphological diagnostic characters.
Obolaria and Gentiana were the closest genera to Swertia, which is paraphyletic including Halenia, Comastoma, Gentianella, and Lomatogonium.
Two of these appear to the natural species groups and the third, containing species with slender, needle-shaped denticles in random and dense array, is likely Paraphyletic (see Straube et al.
Results from that study also suggested that the monotropoideae are monophyletic but that the myco-heterotrophic members may form a paraphyletic group.