Archaeopterygiformes
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Archaeopterygiformes
[‚ärk·ē‚äp·tə‚rij·ə′fȯr‚mēz] (paleontology)
The single order of the extinct avian subclass Archaeornithes.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.