1230 



CLASS AVES. 



able that these Birds were allied to the latter genus. The bones 

 from the Cretaceous of Europe described as Palceornis^ Cimoltornis, 

 and Cretornis, belong to Ornithosauria. 



In the Tertiary we have Eupterornis and Remiomis from the 

 Lower Eocene of Rheims ; while the Upper Eocene (Lower Oligo- 



Fig. 1116. — Restoration of the skeleton of Ichthyornis disfiar; from the Cretaceous of 

 North America. Reduced. (After Marsh.) 



cene) of Hampshire has yielded Macrornis, and the Lower Miocene 

 (Upper Oligocene) of the same county Ptenornis. 



Toothed Series. — This extinct series is characterised by the 

 presence of teeth, and typically of amphiccelous vertebrae. 



