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66 11/25/30 Excursion with Dr. Feruglio to Pe�alba, on the upper Rio Chico. On the cliff on E. side of the laguna the base of the Salamanqueano, with its cg. of transgression, and the top of the Chubutiano are visible. Along the Chico the generalized section is as follows: PEHUENCHE Banco Negro SALAMANQUEANO, with Banco Verde Ost. pyrotheriorum, etc. Lava Flow DIKE CHUBUTIANO with dinosaurs. Here also Feruglio states that dinosaurs have been found only in the Chubutiano + not in the Pehuenche to his knowledge. He says none of the discoveries of dinosaurs in the Pehuenche are authenticated. The following structural conditions near Pe�alba account for the former belief that dinosaurs between there + Williams(?) were from the Pehuenche: (p. 68.) 67 "CERRO BLANCO" High white cliff near northeastern end of the Pampa Mar�a Sant�sima and Southwest of Cerro Negro, for which there is no local name. Feruglio calls it Cerro Blanco.* Profile P, p. 70 seq. 28600 262. Cranium without teeth. Lower tuff, profile, p. 70. J.H. 11/24/30. 1 pack. 263. Various. As #262. G.G.S. + J.H. 11/24/30. 1 pack. 28640 264. Symphysis without teeth. As #262. J.H. 11/24/30. 1 pack. 28641 265. Large jaw, 2 teeth. Tuff above #262, profile p. 70. J.H. 11/24/30. 1 pack. 28752 266. Ungulate jaw frag. + two edentate scutes. Highest beds. Prof. p. 73 GGS 11/24/30. 1 pack. - not in place, but almost surely from bed marked. 29406-7 * But there are other points in the neighborhood known locally as Cerro Blanco. The name is also applied to the barranca S. of Coli-Huapi descriptively.