prop. n. p1.(Zool.) An extinct order of reptiles which stood erect on the hind legs, and resembled birds in the structure of the feet, pelvis, and other parts.
Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
References in periodicals archive ?
140 pallida (center) Orthophytum supthutii Lapa duartei 260-1 Portea petropolitana Portea orthopoda 278 var.