AMEGHINO: LES FORMATIONS SÉOIMENTAIRES. 



563 



T. 



Tajassus, 406, 487, 489, 491. 



Tamanduá, 492. 



Tapes, 57. 



Tapirus, 486, 491. 



Tatú, 260. 



Tatusia, 375, 379, 460, 482, 487-490, 492. 



Tegeotherium, 473. 



Tellina, 123. 



Tellina Burmeisteri, 51, 508. 



Tellina patagónica, 504. 



Tellina tehuelcha, 132. 



Tennysonia, 192, 



Tennysonia subcylindrica, 191. 



Terebratella dorsata, 122, 132, 137, 141, 



142, 279. 

 Terebratella flexuosa, 14:2. 

 Terebratella patagónica, 132, 134, 137, 



141. 

 Terebratella venter, 142. 

 Terebratella venter var. pyramidesia, 



256. 

 Terebratula, 57. 

 Terebratulina Ortmanni, 142. 

 Tetramerorhinus, 478. 

 Tetrastylus, 252, 481, 483, 485, 502. 

 Tetrastylus montanus, 501. 

 Teutomanis, 376. 

 Teutomanis franconica, 376. 

 Theosodon, 235, 476, 478, 480. 

 Theosodon Lydekkeri, 503. 

 Theridomyops, 483. 

 Theridomys, 243, 244, 419. 

 Theridomj^s aquatilis, 416. 

 Theridomys siderolithicus, 416. 

 Thoatherium, 476, 478. 

 Thoatherium crepidatum, 504. 

 Thoatlierium minusculum, 302, 342. 

 Thomasliuxleya, 468, 507. 

 Thracia, 59. 



Thracia lenticularis, 57. 

 Thricomj's, 241. 

 Thrinacodus, 241. 

 Tichodon, 478. 

 Tillotherium, 348. 

 Tillotlierium fodiens, 347. 

 Titanomj's, 243. 



Titanosaurus, 68, 89, 90, 282, 507. 

 Titanosaurus australis, 508. 

 Tivela argentina, 246. 

 Tolypeutes, 455, 487, 488, 490, 492. 

 Toñatia, 492. 

 Tonnorhinus, 470. 



Tonostylops, 468. 

 Tornatina, 123. 



Toxodon, 484, 486, 487, 489, 499. 

 Toxodon platensis, 499. 

 Toxodoutherium, 481. 

 Toxotemnus, 468. 

 Trachytypotherium, 481-483, 501. 

 Trachytypotherium disparile, 268. 

 Trachytypotherium internum, 5(>1. 

 Trachytypotherium Lehmann-Nitschei, 



268. 

 Trachytypotherium rectum, 268. 

 Trachytypotherium vietum, 268. 

 Transpithecus, 466. 

 Traspoatherium, 472. 

 Trechomys. 244. 

 Tremarctos, 398. 

 Tremaryllus, 483, 484, 501. 

 Trematherium, 479. 

 Tremopora, 199, 200. 

 Tremopora radicifera, 189, 192, 194 - 



196, 198, 461. 

 Tretomys, 488, 500. 

 Tribodon, 484. 

 Tricardia, 208, 209, 476. 

 Tricentes, 283. 

 Trichechus, 407. 

 Trieoelodus, 472. 

 Trigonia, 50, 59. 

 Trigonia aff. aliformis, 57. 

 Trigonia aff. ecpleta, 57. 

 Trigonia ecpleta, 57. 

 Trigonia cazadorina, 57, 508. 

 Trigonia subventricosa, 508. 

 Trigonia transitoria, 509. 

 Trigonostylops, 95, 320, 467, 507. 

 Trigonostylops coryphodontoides, 321. 

 Triisodon, 283. 



Trimerostephanos, 467, 470, 472, 50(i. 

 Tripylus excavatus, 170. 

 Trochita, 51. 



Trochita colchaguensis, 161, 503. 

 Trochus Philippii, 503. 

 Trophon, 245. 

 Trophon fairus, 500. 

 Trophon geversianus, 279, 500. 

 Trophon inornatus, 500. 

 Trophon intermedius, 256, 265, 279. 

 Trophon jorgensis, 505. 

 Trophon laciniatus. 265, 266. 

 Trophon montenus, 501. 

 Trophon patagonicus, 134. 



