410 Report of the State Geologist. 



PLATE LVII. 



CALATHOSPONGIA, gen. nov. 



Page 347. 



(See Plates XLVIII, XLIX, L, LI, LII, LVI, LX, LXVIII.) 



CALATHOSPONGIA (?) MAGNIFICA, Sp. nOV. 

 Page 374. 

 (See Plate LVI.) 



Figure 1. The upper portion of a very large example, retaining a part of the 

 body and enough of the apertural expansion to show its extent. 

 Keokuk group. Crawfordsville, Indiana. 



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