Ixii 



THE PALEONTOLOGY OF MINNESOTA 



Minn., 23-52; flora of lower, 2; flora of middle, 1; 

 iron ores, 54; other fossils from Minn., 53-54; 

 plants known to occur in Minn., 22. 

 Crisina, 121. 

 Crisinella, 106. 

 Cryptonella, 472. 

 Crytonellinfe, 471, 472. 



Cryptostomata, 124, 98, 100, 104, 105, 108-110, 208. 

 Ctenostomata, 112, 105, 107, 109-111, 114. 

 Cupulifereae, 5. 

 Cyathophylloids, 53. 

 Cyathophyllum profundum, 88. 

 Cycadeas, 6, 2-4, 7. 

 Cyclopora, 106, 110. 

 Cycloporella, 106. 

 Cyclospira, 469, 470, 471. 



bisulcata, 47O, 334. 



Cyclostomata, 115, 107-111, 187, 190, 208, 209, 214. 

 Cylindrocoelia, 77. 



covingtonensis, 78. 



endoceroidea, 77, 78. 



minnesotensis, 78. 

 Cystiphragms, 98, 104. 

 Cystodictya, 106, 110, 111, 128, 145. 



gilberti, 128. 



Cystodictyonidas, 106, 110, 148, 214. 

 Cystopora, 107, 110. 



Daikaulia, 358. 

 Dakota group, flora, 3, 1-6. 

 Dalmanella, 439, 441, 458. 

 amoana, 453. 

 corpulenta, 446. 

 emacerata, 445. 

 gibbosa, 451. 

 hamburgensis, 44O. 

 metki, 446. 

 stonensis, 453. 

 subffiquata, 446, 421. 



var. circularis, 452, 448, 453. 

 var. conradi, 449, 448. 

 var. gibbosa, 451, 448, 450, 452. 

 var. perveta, 45O, 448. 

 testudinaria, 441. 



var. emacerata, 445. 

 var. meeki, 445. 

 Dayia, 470. 

 Defrancia, 121. 



Dekayella, a9, 107, 215, 223, 267, 270, 272, 274, 288' 

 echinata, 275. 

 obscura. 269, 273. 

 prasnuntia, 27O, 215, 271, 273. 



var. echinata, 271, 269, 272, 273. 

 var. multipora, 272, 273. 

 var. na^vigera, 271, 272, 273. 

 var. simplex, 271, 269, 272, 273, 275. 

 ulrichi, 273, 215. 



Dekayia, 274, 98, 107, 110, 269, 270, 272, 273, 275. 

 aspera, 274, 26f. 

 trentonensis, 274. 

 Delthyris, 454. 

 brachynota, 455. 

 lynx, 455. 



Dentalina, 36. 



acuminata, 7. 



acus, 37. 



acitticauda, 37. 



adwica, 37. 



mqualis, 38. 



ahercula, 38. 



annulata. 37. 



antenna, 37. 



badenensis. 37. 



badensis, 37. 



boneana, 37, 38 



brevis, 37. 



budensis, 38. 



carinata, 36. 



chrysalina, 37. 



cingulata, 37. 



colligata, 37. 



cornmunis, 36, 37, 38, 52. 

 var. pauperata, 38. 



commutata, 37. 



consobrina, 37, 38 



deflexa, 3S. 



elegans, 37. 



emaciata, 37. 



fasciata, 38. 



ferstlianu, 37. 



fusiformis, 38. 



glandulifera, 38. 



gracilis, 36, 37, 



haidingeri, 37. 



indifferens, 38. 



inermis, 37. 



inornata, 37, 38. 



inorta, 38. 



intermedia, 37. 



korynephora, 38. 



linearis, 37, 38. 



lorneiana, 36. 



megalopolitana, 37. 



mutabilis, 37. 



nepos, 37. 



nitens, 37. 



nodosa, 36, 37. 



obttisa, 37. 



pauperata, 37. 



perscripta, 37. 



perversa, 37. 



plebeja, 37. 



prcelonga, 37. 



pugiitnculus, 37. 



punctata. 37. 



reussi, 37. 



scripta, 37. 



subnodosa, 33. 



tenuicollis, 37. 



transmontana, 38. 



verneuilli, 37. 



Devonian, Bryozoa, 110; Cordaites in lower, 2; 

 ferns, 6; flora of upper, 2; Stomatopora and 

 Proboscina, 121. 

 Dewalquea, 8, 18. 



gelindensis, 18. 



greenlandica, 19. 



