Articulata /(är*tĭk`ū̇*lā"tȧ)/

Ar·tic·u·la·ta

Articulata

n. pl.
  1. One of the four subkingdoms in the classification of Cuvier. It has been much modified by later writers. (Zool.)
  2. One of the subdivisions of the Brachiopoda, including those that have the shells united by a hinge.
  3. A subdivision of the Crinoidea.