Search Result for "archaeornithes": 
Wordnet 3.0

NOUN (1)

1. primitive reptile-like fossil birds of the Jurassic or early Cretaceous;
[syn: Archaeornithes, subclass Archaeornithes]



The Collaborative International Dictionary of English v.0.48:

Archaeornithes \Archaeornithes\ n.
   1. 1 a subclass of primitive reptilelike fossil birds of the
      Jurassic or early Cretaceous.

   Syn: subclass Archaeornithes
        [WordNet 1.5]


WordNet (r) 3.0 (2006):

Archaeornithes
    n 1: primitive reptile-like fossil birds of the Jurassic or
         early Cretaceous [syn: Archaeornithes, subclass
         Archaeornithes]