506 Bulletin American Museum of Natural History. [Vol. XXXIV, 
provisionally referred by Williston to the genus Celophysis. As shown by 
the writer (Kurze Mitteilung iiber Perm, Trias und Jura in New Mexico, 
N. Jahrb. f. Min. etc. Beil. Bd. 32, 1911, p. 730-739) .the Trias in Poleo 
Creek and Mesa Prieta near Gallina is divided into two parts by the 
oo) 
“Poleo-top-sandstone.” The basis of the latter is equivalent to the 
59! 
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i) 
60 64 
Fig. 55. Celophysis willistoni. Anterior tail vertebra, right aspect. X } 
Fig. 56. Celophysis willistoni. Middle tail vertebra, right aspect. > i. 
Fig.57. ?Celophysis willistont. Tail vertebra, centrum, three views. Ka. Or 
perhaps a dorsal of a very small specimen. (Type: Cope, l. c. 1887, p. 227, ‘‘dorsal’’.) 
Fig. 58. Celophysis willistoni or C. bauri. Half of tail vertebra; 6 section showing 
neural canal and three cavities. x i. 
Fig. 59. Celophysis willistoni. Right humerus, anterior aspect. 3. 
Fig. 60. Celophysis willistoni. Part of right ilium; a lateral, 6 anterior aspect showing 
pubic facet and acetabular crest. xa. (Type. Cope, le. 1887, p. 227). 
Fig. 61. Celophysis sp. <A species of Celophysis medium in size between baurit and 
willistont. Head of right pubis with articular face. > i. 
Fig. 62. Celophysis willistoni. Fragment of middle part of pubis. > 3. . 
Fig. 63. Celophysis willistoni. Distal extremity of left ischium, lateral aspect with 
sections. xX 
tole 
Fig. 64. Celophysis willistont. Distal extremity of metatarsal, three views. x } 
Ze 
Shinarump conglomerate of Colorado and Utah, a horizon yielding Phyto- 
saurian and Labyrinthodont bones in a very wide area in New Mexico, 
Arizona, Utah and Colorado, and even in Wyoming. The Triassic clays 
and sandstones below this horizon contain some fossil wood, but no other 
fossils. This lower division is 50-60 m. thick in Poleo Creek. The Poleo- 
