OSTEOLOGY OF CARNIVOROUS DINOSAURS. 153 



Plate 25. 



Metatarsals of Ceratosaurus. 



Figs. 1-2. Metatarsals of left hind foot of Ceratosaurus nasicornis Marsh. Type. Cat. No. 4735, U.S.N.M. 



1, posterior view; 2, distal view; I, roughened surface for articulation of hallux, II, III, IV, 



metatarsals 2, 3, and 4. Both the figures are one-half size. Drawn under the direction of 



Prof. O. C. Marsh. (See p. 112.) 



Plate 26. 



Left ramus and scapula of Ceratosaurus. 



1. Left scapula of Ceratosaurus nasicornis Marsh. Type. No. 4735, U.S.N.M. External view. 

 About one-third nat. size. Distal end missing. (See p. 102.) 



2. Left ramus of Ceratosaurus nasicornis Marsh. Type. No. 4735, U.S.N.M. Internal view. 

 About one-third nat. size. (See p. 88.) 



Plate 27. 



Restorations of Ceratosaurus. 



Upper figure. Restoration of Ceratosaurus nasicornis Marsh. 1892. One-thirtieth nat. size. 

 There are five too many restored dorsal vertebrae in the middle of the back bone. (After 

 Marsh.) (See p. 115.) 



Lower figure. Life restoration of Ceratosaurus nasicornis Marsh. By Frank Bond, 1889. Drawn 

 under the direction of Professor W. C. Knight. (See p. 115.) 



Plate 28. 

 Restorations of Ceratosaurus. 



Upper figure. Life restoration of Ceratosaurus nasicornis Marsh, by J. M. Gleeson, 1901. Drawn 



under the direction of Charles R. Knight. (After F. A. Lucas.) (See p. 115.) 



Lower figure. Life restoration of Ceratosaurus nasicornis Marsh. By J. Smit, 1911. (After Rev. 



H. N. Hutchinson.) (See p. 116.) 



Plate 29. 

 Skeleton of Ceratosaurus. 

 Mounted skeleton of Ceratosaurus nasicornis Marsh. No. 4733, U.S.N.M. About one- 

 thirtieth nat. size. Shown as exhibited in the U. S. National Museum. (See p. 114.) 



Plate 30. 

 Restoration of Ceratosaurus. 



Drawing of the mounted skeleton of Ceratosaurus nasicornis Marsh, shown in the preceding 

 plate. The original parts present in the skeleton are represented by line shading and the 

 restored parts in outline. The ribs have been restored too heavy, their distal ends espe- 

 cially should be more slender and tapering. There is also one too many presacral vertebrae 

 in the backbone. About one-fifteenth nat. size. 1, first caudal vertebra; 9, ninth 

 cervical vertebra; 23, twenty-third presacral or last dorsal vertebra. (See p. 114.) 



Plate 31. 

 / Restoration of Ceratosaurus. 



. Model restoration of Ceratosaurus nasicornis Marsh. Modeled by Charles W. Gilmore, 

 1915. Based on the type and mounted skeleton shown in plate 29. In order to depict the 

 flesh-eating habits of Ceratosaurus, it is shown here as completing the kill of Camptosaurus 

 nanus, a small herbivorous contemporary. About one twenty-fourth nat. size. (See p. 116.) 



