PALEONTOLOGICAL INDEX 



Figures in bold face indicate principal discussion. 



Acroculia erccta, 206. 

 Actinopteria, USS, <J42. 

 Actinopteria cf. boydi, 424, 442, 470, G43. 

 boydi var. gibbosa, 75, 107, S5». 

 decussata, 62, 60, 77, 107, 35S. 

 cf. epsilon, 370, 441, 642. 

 sp., 76, 107, 260. 

 Agoniatites expansus, 53, 55, 57, 80, 90, 



91, 92, 96, 108, 321. 

 Ambocwlia, 20O, «02. 

 Ambocoelia grogaria, 366, 603. 

 nucleus, 203. 

 prffiumbona, 85, 106, 204. 

 umbonata, 55, 56, 58, 59, 65, 66, 67, 

 68, 71, 72, 73, 75, 76, 77, 82, 84, 

 85, 102, 106, 200, 355, 359, 360, 

 361, 362, 364, 365, 367, 369, 388, 

 390, 392, 395, 432, 440, 447, 459, 

 469, 480, 492, 497, 498, 499, 500, 

 505, 510, 514, 515, 516, 520, 525, 

 526, 527, 528, 602. 

 umbonata var. nana. 202. 

 virginiana, 57, 68, 98, 106, 202. 

 Ambonychiidae, 255, 641. 

 Ammonoidea, 319, 692. 

 Amplexus, 120. 



Amplexus bnmiltonise, 68, 105, 120. 

 Anatinacea, 272. 

 Annelida, 122, 544. 

 Anolotheca acutiplecata, 49, 112. 

 Camilla, 55, 91, 106, 112, 209. 

 (Coelespira) acutiplicata, 54. 55, 57, 

 68, 71, 91, 92, 93, 106, 207. 

 Anomalodesmacea. 372. 

 Anomia reticularis, 183. 



terebratulites strialulus, 170, 572. 

 Anoplia, 159. 

 Anoplia nucleata, 58, 59, 91, 105, 112, 



159. 

 Anoplotbccn. 2<t7. 

 Anthozoa, 119. 539. 

 Arcacea, 248, 027. 

 Arthorodiros, 70<». 

 Arthropoda, 326. 699. 

 Aspidobranchin. 280, 661. 

 Asteroidea, 54.3. 

 Athyrida. 206, 604. 

 Athyris, 21 1, 604. 

 Athyris angelica, 433, 440, 524, 604. 



spiriforoidos, 51, 62, 68, 76, 102, 

 106. 211. 

 Atrcmata, 124, 546. 



Atrypa, 586. 



Atrypa acutiplicata, 207. 



aspera var. occidentalis, 589. 

 chemungensis, 183. 

 concinna, 206. 

 concentrica, 211. 

 congregata, 171. 

 contracta, 577. 

 globuliformis, 582. 

 hystrix, 349, 356, 358, 367, 378, 379, 

 381, 390, 394, 395, 397, 398, 440, 

 520, 589. 

 limitaris, 175. 

 mescacostalis, 581. 

 reticularis, 66, 68, 72, 106, 183, 360, 

 367, 369, 379, 395, 397, 424, 440, 

 453, 456, 457, 461, 462, 463, 470, 

 480, 492, 497, 498, 509, 510, 586, 

 589. 

 spinosa, 184, 440, 493, 494, 498, 509, 

 513, 520, 525, 527, 587, 589. 

 AtrypidK, 183, 586. 

 Aulopora, 542. 

 Aulopora repens, 439, 542. 

 serpens, 542. 

 sp.. 56. 

 AuloporidfB, 542. 

 Avicula boydii, 642. 

 chemungensis, 629. 

 decussata, 258. 

 equilatera, 265. 

 flabella, 250. 

 fragilis, 632. 

 longispinum, 637. 

 parilis, 263. 

 quadrula, 642. 

 speciosa, 611. 

 tricostata, 649. 

 Aviculopecten, 263, 648. 

 Aviculopecten, cf. cancillatus, 246, 442, 

 511, 648. 



equilatera, 91, 107, 265. 

 equilaterus, 265. 



princeps, 62. 66, 76, 82, 87, 107, 263. 

 sp., 62, 60, 2»6, 442, 526, 649. 



B 

 Bactrites, 319, 692. 



Bactrites aciculatus, 91, 92, 96, 108, .319, 

 322. 



aciculum, 320. 



aciculus. 55, 00. 91. 108. 347. 348, 

 .S57. 363, 368, 370, 371, 372, 444, 

 (592. 



