Explanation of Plate XIV. 



Page 



Fig. 1. Palceacis oblusa 118 



la. View from above. (Keyes collection. J 

 lb. Same from Bide. 



CarboniferoTiB, Keokuk limestone. 



Fig. 2. Favosites favosa 120 



Small portion of a very large mass. (Mas. Mo. Geol. Sar.) 

 Silurian, Niagara V oolite. 



Fig. 3. Favosites hemispherica 120 



A medinni tized coiallnm. (Mus. Mo. Geol. Snr.) 

 Silurian, Niagara limestone. 



Fig. 4. . Cystophyllum americanum 117 



4a. Lateral view. (Mus. Mo. Geol. Sur.) 

 4b. Longitudinal section of anotlier specimen (same cabinet) . 

 Devonian, Callaway limestone. 



Fig . 5 . Syrivgopora sp7 122 



Portion of a large mass. (Mus. Mo. Geol. Sur.) 

 Caiboiiilerous, Kindeibook limestone. 



Fig . 6 . Syringopora harveyi .' 121 



6a. Part of a large specimen. (Mus. Mo. Geol. Sur.) 



Carboniferous, Keokuk limestone. 

 6b. Syringopora multattenuata ; cross- section. 



Carboniferous, Coal Measures. 



Fig . 7. Strictopora carbonaria 121 



View of part of branch. (Mus. Mo. Geol. Sur.) 

 Cartoniferius, Burlington limestone. 



Fig . 8. Aulopora gracilis 123 



Type specimen. (Mus. Mo. Geol. Sur ) 

 Carbonilerons, Burlington limestone. 



Fig. 9. ChonophyUum sedaliense 116 



Type specimen. fAfter White) 



Carboniferous, Chouteau (Kinderhook) limestone. 



Fig. 10. Conopterium effusum 118 



A rejregentative example. (Mus. Mo. Geol. Sur.) 

 Carboniferous, Kinderhook limestone. 



Fig. 11. Clistopoi a placenta 119 



Viewlrcm above. (Mus. Mo. Geol. Sur.) . 



Carboniferous, Chouteau (Kinderhook) limestone. 



Fig . 12 . ChcEtetes milleporaceus 123 



12a. Part of large mass (Mus. Mo. Geol. Sar.) . 

 12b, Cross-section of coralites (enlarged). 

 ]2c. Longitudinal section of same (enlarged). 

 Carboniferous, Upper Coal Measures. 



