• Webster's Revised Unabridged Dictionary
    • n. pl Tessellata (Zoöl) A division of Crinoidea including numerous fossil species in which the body is covered with tessellated plates.
    • ***
Century Dictionary and Cyclopedia
    • tessellata A group of tessellate Paleozoic sea-urchins, synonymous with Palæchinoidea.
    • tessellata Tessellated crinoids; an order of Crinoidea, having the calyx formed entirely of calcareous plates, and the oral surface without ambulacral furrows, as in the genera Actinocrinus and Cyathocrinus.
    • ***


Webster's Revised Unabridged Dictionary
NL. See Tessellate