250 • The Philippine Journal of Science vm 



the Philippines. The older andesite in Benguet can scarcely 

 be distinguished from diorite, and grades into it. 



We have at Alpaco near Naga, Cebu, a marl which corresponds 

 very closely to No. V in this table, and is most certainly 

 Oligocene. 



In Cebu Island there are eruptive rocks at the base of 

 the Miocene, principally andesites, which correspond to No. VI. 



There are volcanic breccias in the Philippines, some of which 

 correspond to No. VII. The volcanic breccia in northern and 

 central Luzon, particularly well developed around Baguio, is, 

 in part, of this formation. 



The marly limestone of the Danao district, Cebu, is probably 

 equivalent to No. IX of this table. 



Undoubtedly much of the eruptive rock of the Philippines 

 should be referred to the same stage as represented by No. 

 X in this table; that is, middle and upper Miocene. Diorite 

 intrusions have been found in Benguet cutting Miocene lime- 

 stone. 



The upper Miocene and Pliocene "Calcareous Stage" shown 

 in No. XI can be exactly duplicated in the Philippines; it is 

 particularly well developed in Cebu where many of the fossils 

 illustrated in this paper were collected. This formation is 

 characterized by the foraminifer, Lepidocyclina, and by the 

 marine alga, Lithothamnium. 



No. XII can be duplicated at many points in the Philippines. 



No. XIII is represented in the Philippines by Pleistocene 

 deposits in the Agusan Valley, Mindanao, the great tuff deposits 

 around Manila, etc. A few fossil teeth of mammals have been 

 found in the latter formation. 



No. XIV is represented in the Philippines. 



FOSSIL LOCALITIES 



The principal fossil localities (Plate II) in the Philippines 

 are as follows : 



1. Liguan, Batan Island, Albay Province, Luzon. This locality contains 



shale, sandstone, and limestone, but No. 1 refers to the hard, 

 bluish to buff limestone, occurring near the military mine. 



2. Caracaran River, Batan Island; hard, bluish to buff limestone, 



probably the same as No. 1. 



3. Sitio of Manila, Batan Island; limestone. This formation contains 



numerous specimens of Ampullinopsis, a form which is referred 

 by Dall to the Oligocene. 



4. Calanaga Bay, Batan Island; marl and limestone alternating in 



thin beds, dipping at various angles from 20° to 45° to the north. 

 They are grayish to yellow and contain numerous Foraminif era. 



