PLATE XXXI 



Jurassic Dinosaurs. — Sauropoda. 



MOKUSAUKID.K. 



Page 

 Fig. 1. Tooth of Morosaurua grandis Marsh ; outer view; one-halt' natural size. 181 



Fig. 2. The same tooth; front view; one-half natural size 181 



Fig. 3. Axis and part of atlas of Moroaaurna grandis; side view; one-eighth 



natural size 182 



Fig. 4. The same; front view; one-eighth natural size 182 



a, odontoid process; ax, centrum of axis; d, diapophysis; /, foramen in 

 centrum; s, neural spine; z, anterior zygapophysis. 



Fig. 5. Fourth cervical vertebra of Morosaurua grandis; side, view; one-eighth 



natural size 182 



Fig. 6. The same vertebra ; back view; one-eiglith natural size 182 



b, ball; c, cup; d, diapophysis; e, parapopbysis; /, foramen in centrum; 

 z, anterior zygapophysis; c , posterior zygapophysis. 



Fig. 7. Pelvic arch of Morosaurua grandis: seen from in front; one-sixteenth 



natural size 183 



Fig. 8. Sacrum of Moronaurns grandis; seen from below: one-tenth natural 



size 183 



a, first sacral vertebra; ft, transverse process of first vertebra; c, transverse 

 process of second vertebra; d, transverse process of tliird vertebra; 

 e, transverse process of last sacral vertebra; /,/',./", foramina between 

 processes of sacral vertebra- ; j, ;/ , surfaces for union with ilia; il, ilium; 

 is, ischium; ?ic, neural canal; p, last sacral vertebra; pb, pubis. 

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