Clapp and Shimer. — Sutton Jurassic. 
Fig. 
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Fig. 
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EXPLANATION OF PLATES. 
PLATE 40. 
Calamophyllia dawsoni n. sp. A portion of the type specimen, 
showing method of branching and the stout prohferations. Xl|. 
Terebralula suttonensis n. sp. Brachial valve of type specimen, 
somewhat deformed, showing median and lateral sinuses. XL 
Same. Front view with pedicle valve above showing undulating 
junction of the two valves and deplacement of median fold to the 
right. XL 
Chorisloceras sultonensis n. sp. Suture. X4. 
Calamophyllia suttonensis n. sp. Transverse section. Xl|. 
Choristoceras suttonensis n. sp. Portion of a coil of the type specimen; 
surface view showing the strong ribs. X25. 
Hg. 7. Calamophyllia suttonensis n. sp. A portion of the type specimen 
showing method of branching, costae, and knobby proliferations. 
XL 
Fig. 8. Isaslrea vancouverensis n. sp. A portion of the type specimen show- 
ing the deep calices. XI5. 
Fig. 9. I sastrea whiteavesi n. sp. The type specimen. XI5. 
lug. 10. The same. Corallites embedded in coenenchyma. This is at the 
sides of the tj'pe specimen and is apparently continuous with that 
of Fig. 9. Xli 
