110 GEOLOGICAL RECONNAISSANCE OF THE DOMINICAN REPUBLIC. 



UPPER OLIGOCENE. 



List of stations on north side. 



8598 (C-8). Province of La Vega, east side of Arroyo Blanco (?), east cf Loma de los 

 Palos, on road from Cotui to Cevicos. C. W. Cooke and C. P. Ross, collectors. April 

 21, 1919. 



8600 (C-10). Province of La Vega, east of Cevicos, on noitheast side of Arroyo 

 Barranca, on road to Villa Rivas. C. W. Cocke and C. P. Ross, collectors. Apiil 22, 

 1919. 



8601 (C-ll). Province of La Vega, Arroyo Jerguen; road from Cevicos to Villa 

 Rivas. C. W. Cooke and C. P. Ross, collectors. Apiil 22, 1919. 



8602 (C-12). Province of La Vega, northeast side of Arroyo Jerguen, about 4.5 meters 

 below top of hill. C. W. Cooke and C. P. Ross, collectors. April 22, 1919. 



8603 (C-13). Province of La Vega, at second (?) crossing of Arroyo Barranca on trail 

 from Cevicos to Villa Rivas. C. W. Cocke, collector. April 22, 1919. 



8604 (C-14). Province of La Vega, at second (?) crossing of Arroyo Barranca on trail 

 from Cevicos to Villa Rivas, 9-12 meters above 8603 (C-13). C. W. Cooke, collector. 

 April 22, 1919. 



Faunal list. 



Species. 



Stations. 



Prov. La Vega. 



8598 8600 8603 8604 



Foraminifera: 



Biloculina ? sp 



Orbitolites (Sorites) duplex Carpenter 



Orbitolites sp. cf. species at station 8600.. 



Heterosteginoides ? sp 



Corals: 



Orbicella sp. or Cyathomorpha sp 



Echinii: 



Clypeaster concavus Cotteau 



Brissopsis antillarum Cotteau 



Mollusca: 



Gastropoda: 



Bullaria sp 



Orthaulax aquadillensis Maury 



Turritella sp 



Natica ? sp. indt 



Pelecypoda: 



Ostrea sp. indt 



Pecten (Aequipecten) sp. cf. P. vaun Cooke.. 



Pecten (Aequipecten) sp 



Cardium ? sp 



Cardium (Trachycardium) sp 



Cardium (Trigonicardia) sp 



Cardium (Laevicardium?) sp 



Protocardia ? sp 



Pitaria ? sp 



Chione (Lirophora) sp 



Cephalopoda: 



Aturia ? sp 



8598 



8601 



8602 



8603 



