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J. C. BRANNER OUTLINES OF THE GEOLOGY OF BRAZIL 



eastern extremity is probably near the north end of Lagoa Mangnaba. 

 Eesting back against these Paleozoic rocks is another wedge-shaped area 

 of red Permian sandstones and shales which crop out at the city of 

 Penedo, on the Rio Sao Francisco, and dip gently toward the ocean. 



Along the railway between Piranhas and the falls of Paulo Affonso are 

 several outliers of sedimentary rocks that are here tentatively referred to 

 the Permian. These outliers cap the hills on both sides of the railway 

 and extend to the northeast as far as Bnique, in the State of Pernam- 



Ellimma 'branneri Jordan 



Ellimma riacencis Jordan 

 Figure 4. — Eocene Fishes from the Mtmninous Shales at Riacho Doce, State of Alagoas 



bnco. Along the entire Alagoas coast Tertiary sediments form a series 

 of bluffs that reach a height of 100 meters above the sea. The rocks are 

 mostly soft sandstones and clays, in some places false-bedded, everywhere 

 particolored, usually horizontal, but at many places showing a landward 

 dip. The upper part of these bluffs are probably Pliocene, but fossil 

 fishes found in the lower shales at Eiacho Doce and at other places on the 

 immediate coast are Eocene. 



