Diatrymiformes

Diatrymiformes

[dī‚a·trə·mə′fōr‚mēz]
(paleontology)
An order of extinct large, flightless birds having massive legs, tiny wings, and large heads and beaks.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.