Uniramia

The Uniramia is a mainly abandoned taxon of arthropods, comprising the Hexapoda (insects and allies) and Myriapoda (centipedes, millipedes, and related forms). The uniting feature was the nature of the appendages on the head and the walking legs. The Crustacea were generally considered the closest relatives of the Uniramia, and sometimes were united as the Mandibulata. However, new studies suggest that the Myriapoda are not more closely related to the Hexapoda than the Crustacea, causing the Uniramia taxon to be abandoned. In proposals treating the arthropods as a polyphyletic group, the Onychophora were included here, but this had little support.

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Taxon: A taxon (plural taxa), or taxonomic unit, is an element of a taxonomy, most commonly used in the scientific classification in biology, where a taxon is is a group of organisms that has been named. Taxa form a hierarchical scheme, each being broken down into sub-taxa. A taxon can then be placed at a ...

Crustacea: REDIRECT crustacean...

Mandibulata: REDIRECT Mandible (arthropod)...