An extinct group or class of marine arthropods characterized by distinctive knobbed or jointed limbs, from early marine fossil records.
From Greek kondylos (knob) + poda (feet/limbs). The -a ending marks it as a taxonomic group in classical nomenclature.
These ancient arthropods had 'knobby feet'—literally what their name means—but figuring out how they relate to modern arthropods has been genuinely challenging for paleontologists.
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