20, 2 Dickerson: Review of Philippine Paleontology 199 
of the age of the Binangonan limestone and showed that the 
foraminiferal limestone did not contain Nummulites but larger 
species which he described as Orbitoides. Douvillé® referred 
these forms to Lepidocyclina. Smith? also recognized Vicarya 
callosa in the Batangas Peninsula and described several other 
forms associated with this guide fossil. Later this same writer * 
described more new fossils from the Philippines and figured 
some characteristic species. In an economic report by Pratt 
and Smith, Smith ° determined the species in the various hori- 
zons and figured the species collected from the beds. Two years 
ago H. Yabe,” of the Tohoku Imperial University of Japan, pub- 
lished a careful discussion of Lepidocyclina of the Philippines 
and illustrated several new species of this genus most excel- 
lently. The present writer recently discussed the Vigo fauna 
and its bearing upon the rate of evolution of Mollusca in the 
Tropics. 
MESOZOIC 
W. D. Smith ” first recognized in certain cherts and slates in 
locos Norte unicellular forms, Radiolaria, which appear to be 
of probable Jurassic, Middle Mesozoic, age. Concerning these 
rocks Smith says: 
In Ilocos Norte, Pangasinan, Balabac, Panay, and other localities there 
are outcrops of hard, red cherts or jaspers, in some places as hard, struc- 
tureless bowlders and in others as fissile beds. When I first found these 
in Ilocos Norte, I compared them with the cherts of California. On exam- 
ination with a microscope they were found to contain fragments of radio- 
larian tests. These rocks have a wide distribution in this part of the 
world, and have been provisionally assigned to the Jurassic by Martin.” 
*Douvillé, H., Les foraminiféres dans ‘le Tertiaire des Philippines, 
Philip. Journ. Sci. § D 6 (1911) 53-80, 4 pls. 
"Smith, W. D., Preliminary geological reconnaissance of the Loboo 
Mountains of Batangas Province, Philip. Journ. Sci. 1 (1906) 617-633, 4 pls. 
*Smith, W. D., Contributions to the stratigraphy and fossil invertebrate 
fauna of the Philippine Islands, Philip. Journ. Sci. § A 8 (1918) 235-300, 
20 pls. 
Pratt, Wallace E., and Smith, Warren D., The geology and petroleum 
resources of the southern part of Bondoc Peninsula, _Tayabas Province, 
P.I., Philip. Journ. Sci. § A 8 (1913) 301-876, 10 pls., 1 map. 
” Yabe, H., Notes on Lepidocyclina limestone from Cebu, Science reports 
of the Tohoku Imperial University, Second series (Geology) 5” (1919) 
37-51, 2 pls. 
“ Dickerson, Roy E., A fauna of the Vigo group; its bearing on the 
evolution of marine molluscan faunas, Philip. Journ. Sci. 18 (1921) 1-23, 
2 pls. 
“Smith, W. D., Philip. Journ. Sci. § A 8 (1913) 245, 246. 
” Martin, K., Reisen in den Molukken I. Leiden (1908) pt. 3. 
