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