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Panarthropoda

Panarthropoda is a taxon combining the Phyla Arthropoda, Tardigrada and Onychophora. Originally they were considered to be closely related to the annelids, grouped together as the Articulata[?], but newer studies place them among a group called the Ecdysozoa. Common characters of the Panarthropoda include

presence of legs
presence of claws
ventral nervous system
segmented body

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