D/ 1 



NEW YORK STATE MUSEUM 



Diplograptus hudsonicus, 137. 

 hypniformis, 137. 



See also Graptolithus (Diplograp- 

 tus) hypniformis. 

 insectiformis, 86. 

 inutilis, 122, 137. 

 laciniatus, 129, 137, 355. 

 laxus, 90, 137, 443. 



figure, 445. 

 longicaudatus, 137. 

 marcidus, 137, 444. 

 mucronatus, 35, 137, 472, 479, 480. 

 obliquis, 129, 137, 355, 359-60. 

 palmeus, 60, 88, 89, 92, 402. 

 peosta, 40, 41, 45, 50, 129, 138, 340, 354, 

 372-74, 413, 416. 



explanation of plate, 539. 



figures, 373. 



zone, facing p. 9, 66. 

 mut perexcavatus, 30. 

 perexcavatus, 401. 

 prionoides, 357. 



pristiniformis, 138, 344, 347, 398, 399. 

 pristis, 26, 35, 38, 39, 88, 101, 138, 243, 



339- 342, 343- 346, 35o, 352, 353- 356. 



363- 372, 374- 385. 386, 390, 391. 

 figures, 346. 



See also Graptolithus pristis. 

 putillus, 35, 40, 120, 138, 415, 420, 430. 

 quadrimucronatus, 122, 138, 339, 344, 



345- 379- 385- 386. 

 ruedemanni, 138, 398. 

 rugosus, 25, 101, 129, 138, 342, 343, 344, 



355- 359- 



figure, 359. 

 secalinus, 138, 342, 356, 357, 358, 359, 



361. 

 ? sextans, 306. 



simplex, 129, 138, 355, 356. 357, 358. 

 spinulosus, 39, 138, 380, 398. 

 teretiuscnlus, 415, 418, 419. 

 thiclei, 26, 



Diplograptus tricornis, 442, 443, 444. 

 trifidus, 24, 47, /2, 89, 102, 138, 351. 

 truncatus, 29, 30, 138. 

 tubulariformis, 229. 

 uplandicus, 86, 403. 

 vesiculosus, 88, 89, 92, 351. 



figure, 88. 

 whitfieldi, 26-27, 39- 138, 379, 386, 394, 



395- 

 Diprion foliaceus, 342. 

 Diprionidae, 402. 

 Discograptus, 183. 



schmidti, figure, 183. 

 Dobbs Linn, Scotland, 236, 387. 

 Dodge, W. W., cited, 21, 141, 279, 382, 



455- 

 Dolbel's brook, 223. 

 Dolgeville, 35, 226, 246, 390, 392, 398, 400, 



4 T 7- 436- 

 Dutton, C. E., mentioned, 365. 



Eaton, Amos, cited, 357; mentioned, 356, 



357- 



Echinognathus clevelandi. 247. 



Echinograptus (Phyllograptus) ?cam- 

 brensis, 357. 



Eisel, R., cited, 143. 



Elgin, la., 40, 399. 



Elles, G. L., cited, 80. 90, 107, 108. ttt. 

 116, 144, 253. 260, 280, 256, 299, 300, 

 306, 308, 309. 312. 313, 7,2?.. 329. 330, 



333- 335- 33 6 - 40T. 405- 4-5- 43o. 

 Elymocaris, 487, 488. 



capsella, 488. 



siliqua, 487. 

 Emmons, Ebenezer, cited 19, 208, -75. 



3i r) . 355- 356, 357- 358 359. 378, 391; 



mentioned, 360. 

 England, 6o, 423, 439, 471. 

 Krian formation, facing p. 66. 

 Eric county. 170. 

 Etchemin river, 20. 



