ORNITHOSCELIDA

‖Or‐ni′tho‐scel″i‐da (?), n. pl. [[NL., fr. Gr. ὄρνισ, ὄρνιθοσ, a bird + � a leg.]] (Zoöl.) A group of extinct Reptilia, intermediate in structure (especially with regard to the pelvis) between reptiles and birds. — Or′ni‐tho‐scel″i‐dan (#), a.