hatcher: diplodocus (marsh) 



63 



Plate IX. Twelve anterior caudals of Dijjlodoctis carnegii (No. 84). Column 1, posterior 

 view ; column 2, anterior view ; column 3, as seen from right side. Vertebrae 

 are arranged consecutively from 1 to 12, commencing at the right in either 

 column. 2 and 3 are coossified and appear as one vertebra in columns 1 and 2. 

 All figures about one twenty-second natural size. 



Plate X. Comparative views of pelvis of Diplodocus and Brontosaurus. 



1. Side view of pelvis of Diplodocus carnegii (No. 94). About one eleventh 

 natural size. From a photograph. Owing to crushing, the sacral spines appear 

 rather low, and since the antei'ior blade of the ilium bends strongly outward, that 

 element is foreshortened and appears rather more pointed than it should. Seen 

 from right side. 



2. Posterior view of same specimen. 



3. Sacrum and ilium of Brontosaurus seen from right side. Pubic peduncle 

 and anterior blade of ilium are incomplete, as is also the top of sacral spines. 



All figures about one eleventh natural size. 

 Plate XI. Hind limb and foot of Diplod,ocus carnegii. 



1. Front view of right tibia, fibula, and foot of Diplodocxis carnegii (No. 94). 



2. External view of same. 



3. Front view of right femur (No. 86). 



4. External view of same. 



All figures about one eleventh natural size. 

 Plate XII. Pelvis and caudal series of Diplodocus longus Marsh. Seen from left side, 



about one fortieth natural size. After Osborn. 

 Plate XIII. Restoration of Diplodocus carnegii Hatcher, one thirtieth natural size. 



