Articulata

Articulata (noun; Latin articulus, joint): 1. (Brachiopoda) A class of the Phylum Brachiopoda, having the valves articulated by teeth on the ventral (pedicle) valve and sockets on the dorsal (brachial) valve.

2. (Bryozoa) A division of Bryozoa containing tubular bryozoans in which colonies are erect, branched and attached by rhizoids.

3. (Echinodermata) A subclass of echinodermatan crinoids comprising sea lilies and feather stars.