PLATE XXIII 6. 



Species of Champdosaiinis, fmiu tlif Pueico beds of Nt;w Mexico, uatnral size. 



Fig. 1-4. — CliampKOHtmrux iiiiKlialia. Four tlorsal vertebrae not knowu to be consecutive, found ue.ar 



Canyon Larjjo uiiugled in tlie same matrix witli bones of Perijitj/clius rhahdodon. Figs, a, inferior; 



b, anterior; c, iiosterior ; and d, superior views of the centra whose number they bear. Page 107. 

 Figs. 5-10. — Vertebrie of Champsosatirua puerceyisis, from the Upi)er Pnerco River near the Nacimieuto 



Mountain. Figs, ."i, 6, and 10, dorsals; 7, 8, and 9, eaudals. Figs, a, inferior; 6, anterior, and c, 



posterior views of the vertebra numbered. Page 107. 

 Figs. 11-22. — Champsoaaurns saponensit. Page 109 

 Fig. 11. — Odontoid bone, lateral view. In all the figures of verttbrje a, represents the inferior; ft, the 



anterior ; c, the posterior, and d, the superior faces. 

 Fig. 18. — A detached diapophysis, with part of the neural arch, from a dorsal vertebra, end view ; a, side 



view. 

 Fig. 19. — Neural spine with postzyg.apophysis from right side ; a, from behind. 

 Fig. 20. — Cervical, and fig. 21, dorsal ribs, proximal portion, lateral view; a, proximal end. 

 Fig. 22. — Part of a rib ; a, proximal fractured end. 



