Ixvi 



THE PALEONTOLOGY OF MINNESOTA. 



planumbona, S90, 3S4, 391. 



ponderosa, 407. 



prcecosis, 414. 



recedens, 414. 



recta. 422. 



rhomboidalis, 410, 400, 411, 457. 

 var. tenuistriata, 412. 

 var. ventricosa, 410. 



rugosa, 410. 



saxea, 414. 



sericea, 414. 



subtenta, 393, 389. 



tenuistriata, 410. 



trilobata,, 395. 



unicostata, 411, 410-413. 

 Leptobolus "occidentals, 360. 

 Leptoccelia, 467. 

 Leptotrypa, 316, 107, 226, 248, 286, 303, 317, 319, 320. 



acervulosa, 318, 226. 



claviformis, 319. 



discoidea, 102. 



flliosa, 307, 303, 318. 



hexagonalis, 317. 



informis, 317. 



irregularis, 318. 



minima, 316. 



petastiformis, 318, 303. 



semipilaris, 318. 

 Lias, flora of, 2. 

 Lichenaria, 83. 



minor, 84*. 



typa, 83, 84, 85. 

 Lichenotrypa, 107, 110. 

 Lindstroemella, 364. 

 Lingula, 338, 108, 335, 344-346, 348, 350, 352, 354. 



anatina, 339-341. 



attenuata, 344. 



beltrami, 361*, 352. 



canadensis, 352*, 353. 



cincinnatiensis, 350-352. 



clathrata, 345. 



cobourgensis, 346, 348. 



covingtonensis, 347. 



crassa, 348. 



daphne, 344. 



deflecta, 348,349. 



elongata, 344. 



elderi, 339, 341. 



eva, 341. 



hurlbuti, 347, 318. 



iowensis, 349, 350-352. 



lamellata, 349. 



linguata, 349. 



minnesotensis, 339. 



modesta, 344. 



morsii, 334. 



Philomela, 342. 



quadrata, 351, 339, 341, 342, S49, 351, 352. 



rectilateralis, 349, 341, 342, 351 



rectilateris. 349. 



riciniformis, 343, 344, 345. 



var. galenensis, 344. 

 spathata, 345. 

 taeniola, 345. 



tenuigranulata, 353. 

 trentonensis, 344. 

 zebra, 345. 



Lingulasma, 353, 354. 

 canadensis, 352. 

 galenensis, 354, 334, 355. 

 schucherti, 353, 355. 

 LingulasmatidiB, 353, 354. 

 Lingulelasma, 353, 378. 

 Lingulella, 346. 



stoneana, 346, 345. 

 Lingulellidae, 360. 

 Lingulidas, 338, 354. 

 Lingulops, 353, 354. 

 Liquidambar, 5. 

 Liriodendron, 7, 5. 



meeki, 22. 

 Liriophyllum, 5. 

 LithistidEB, 79. 

 Lituolidas, 28. 

 Loculipora, 106, 110. 

 Lomatia, 5. 

 Loxosoma, 97. 

 Lucina divaricata, 346. 



occidentalis, 53. 

 Lunarium, 99, 104. 

 Lunutttes dactioloides, 67. 



dactyloides, 67. 

 Lycopodiaceaa, 2, 6. 

 Lyopomata, 338. 

 Lyopora favosa, 83. 

 Lyropora, 106, 110. 

 Lyssakina, 55. 



Maculje, 103. 



Madreporaria, 83; Aporosa, 83; Perforata, 94; Ru- 



gosa, 87. 



Magellania, 371, 372. 

 Magnolia, 8, 5. 



alternans, 18, 9, 22. 

 Malvaceae, 5. 

 Margaritana, 53. 



nebrascensis, 53. 

 Marginul apiculata, 37. 



contraria, 37. 



elongata, 37. 



inversa, 37. 



tennis, 37. 



torulosa, 37. 

 Marsilia, 3. 

 Marsupium. 98, 97. 

 Median tubuli, 98, 104. 

 Meekopora, 107, 110, 148. 



clausa, 148. 

 Megalanteris, 472. 

 Meganteris, 472. 

 Menispermaceae, 5. 

 Mesopores, 98, 103. 



Mesotrypa, 257, 102, 106, 217, 248, 255, 262, 286, 

 306, 315. 



discoida, 26O*, 257. 



inflda, 258, 256-260. 



patella, 260, 257. 



