88 GUIDE TO THE FOSSIL MAMMALS AND BIRDS. 



Table-ease littk' flying bird with keeled sternum, Ichthyornis (Fig. 85), 

 ^^' lias also been found in the Kansas Chalk, but is not 

 represented in the collection. Its teeth are in distinct 

 sockets, and some of its vertebrae are biconcave. 



Fig. 84. — Skeleton of a toothed flightless bird, Hcsjicrornis regalis, from the 

 Cretaceous of Kansas, U.S.A.; about one-eighth nat. size. (After 

 Marsh. See Table-case 13.) 



Among quite recently exterminated Carinatae from the 



Table-case. 

 Ca^e'^BB •'^t^^ithern hemisphere, the rails from New Zealand {Aiitornis), 



