518 



GEOLOGY OF THE DENVEK BASIN. 



The animal restored in PL XXVIII was nearly 30 feel in length when 

 alive, and about 15 feet high in the position represented. The remains 

 were obtained by J. B. Hatcher and A. L. Sullins in the Ceratops beds of 

 ( 'on\ erse < !ounty, Wyo. 



ORNlTIKiMIMIS. 



Besides the large herbivorous dinosaurs from the Ceratops beds, 

 above described, then- wen- also carnivorous forms thai served to limit 



i ■ l.rn tibia of On itko limit iiefoa Marsh, a, frontview; B, distal end; 0, transverse section. 



Left metatarsals of same specimen, a. iron! view; B, proximal ends; c, transverse secti ,distalends. 



Phalanges of second digil oi same foot; front view. a. lirst phalanx; B, second phalanx c, third or 

 terminal, phalanx. 



-Left metacarpals oi same species, perhaps of smaller individnal ; frontview. 

 Ul the figures are one-third uatura] - 



cending process oi astragalus c calc; m; /', face for fibula EI, second metatarsal; in. third 



metatarsal; iv, fourth metatarsal 



their numbers, and anion-' these the genus Ornithomimus is especially 

 important. Several species of this genus are now known from this horizon, 

 some quite large and very destructive in habit, and others of moderate 

 dimensions. One of the latter species, the type of the genus Ornithomimus 



velox, was discovered in 1889 in the Denver beds, at Green Mountain, near 

 Denver, bj Greorge L. Cannon, jr. The remains show that Ornithomimus 



