EXPLANATION OF PLATE 13. 



Figs, la and 16. Cymbospondylus(l) uutiuitt, n. sp. Right luimerus. no. 9873. X 1- From 

 the Middle Triassic, West Humboldt Range, Nevada. 



la, superior side; 11), inferior side. 



Fig. 2. Cymbos-pondylus nci'iuluintx, n. sp. Tibia? no. 10620, X % From the Middle 

 Triassic, New Pass Range, Nevada. 



Fig. 3. Cymbospondyliis nevadanus, n. sp. Fibula?, no. 10620, X % From the Middle 

 Triassic, New Pass Range, Nevada. 



Figs. 4a and 46. Cymbospondylua nevadanus, n. sp. Two views of a caudal rib, no. 10620, 

 X % From the Middle Triassic, New Pass Range, Nevada. 



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