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polyphyletic

polyphyletic

1 9.9
A group of living things that come from different ancestors and are not closely related
  • adjective
  • /ˌpɒlɪfaɪˈlɛtɪk/
  • Specialized
: polifilético
  • Whittaker's functional plant kingdom was an admittedly polyphyletic group of land plants, brown algae, and red algae.

Examples

  • Similarly, although most textbook authors have abandoned the polyphyletic kingdom Protista, they continue to devote a chapter to "protists."

    Academic text (2012)
  • Indeed, many traditionally recognized spiny-finned fish groups are shown to be polyphyletic (figure 3).

    Academic text (2010)
  • Asterisks indicate taxonomic groups that appear to be polyphyletic. Open and closed circles represent perciform and gasterosteiform taxa, respectively.

    Academic text (2010)
  • At present, there is clear evidence for fusion of cellular genomes for only one of their five kingdoms, the so-called Protoctista, which no serious biologists accept as a sensible group because it is undoubtedly polyphyletic.

    Academic text (2003)
  • Their so-called phylum Archaeprotista is polyphyletic: Archamoebae and metamonad flagellates independently lost mitochondria and are no closer phylogenetically than animals and plants.

    Academic text (2003)
  • Some scientists argue that the traditional classification of amphibians is polyphyletic because it includes species from multiple evolutionary lineages.

  • The international conference highlighted several cases of polyphyletic groups in various taxonomies, emphasizing their evolutionary significance.

  • Research has shown that certain plant families are polyphyletic, meaning they have evolved from multiple ancestral species rather than a single origin.

Synonyms

heterologous
vspolyphyletic
  • Specialized
1 9.9

From a different species or source than the usual one

applies to groups with several ancestral origins rather than single-species transfers
nonhomologous
vspolyphyletic
  • Specialized
1 9.4

Having a different origin or structure from something else

describes groups deriving from multiple ancestors rather than simple origin differences
polygenetic
vspolyphyletic
9.4

Developed from several different sources

is specific to organism groups with more than one ancestor
heterologic
vspolyphyletic
  • Specialized
9.9

Parts that are different in form and evolved separately, like butterfly and bird wings

focuses on groups having several ancestral sources rather than structural mismatch

Antonyms

monophyletic
  • Specialized
1 9.4

A group of animals or plants that all come from one ancestor

How Related

monophyletic
  • Specialized
1 9.4
polyphyletic
  • Specialized
1 9.9

Surface Forms

polyphyletic positive

Morphology

polyphyletic = phyletic (opaque) = poly + phylet + ic

The prefix poly- is clear, but the base phyletic is a technical term that most B1 learners would not know well enough to recover the meaning.

Etymology

Polyphyletic comes from Greek parts poly- meaning 'many', as in polygon, and phylē meaning 'tribe' or 'line'. In biology, that image helps: a polyphyletic group has species from several different ancestors instead of a single common ancestor.