216 The Philippine Journal of Science 1922 
Merrill identified the following living forms: 
Dipterocarpacee: Shorea polysperma, Shorea guiso, Shorea sp., Anis- 
optera thurifera. 
Lauracee: Beilschmiedia cairocan, Phoebe sterculioides. 
Guttifere: Calophyllum blanco. 
Tiliacee: Diplodiscus paniculatus. 
Menispermacee: Anamirta cocculus. 
Cyperaceezw: Mapania numilis. 
As Merrill points out, great elevations have taken place here 
since this tropical, low-altitude flora flourished on the present site 
of Sagada. These tuffs and their associated coralline limestones 
are probably equivalent to the Malumbang Pliocene. Appa- 
rently plants of the tropical regions have changed but little 
since the Pliocene, thus again evidencing the slowness of evo- 
lutionary change in these climes. 
BANISILAN FORMATION 
UPPER PLIOCENE 
The following species were collected from the Banisilan for- 
mation by Graham B. Moody at his locality 424 which he 
described as being 1 mile east of Matinao, 3 mile west of Ma- 
litabug River, Cotabato, Mindanao. 
List of species from Moody’s locality 424. 
GASTROPODA 
Calliostoma sp. Nassa crenulata Bruguiere. 
Cancellaria oblonga Sowerby. Nassa sp. 
Capulus sp. Natica albumen Lamarck. 
Cerithidea sp. Natica mamilla Lamarck. 
Conus sp., large. Natica spadicea Reeve. 
Conus lividus Hwass. Pustularia nucleus Linneus. 
Conus insculptus Kiener. * Ranella subgranosa Beck. 
Cypraea erosa Linnezus. Ranella sp. 
Cypraea sp. Sigaretus eximius Reeve. 
Distortio clathrata Lamarck. Triton clavator Lamarck. 
Dolium sp. Turris flavidula Lamarck var. 
Eulima sp. sonde K. Martin. 
Murex cf. pliciferas Sowerby. Terebra sp. 
PELECYPODA 
Arca cf. barbata Linneus. Leiconcha trimaculata (Desh.)- 
Arca cornea Reeve. Lima sp. 
Cardita antiquata Linneus. Lucina sp. 
Cardita pica Reeve. Macoma nobilis Hanley. 
Chama sp. Ostrea sp. a. 
Cardium unicolor Sowerby. Ostrea sp. b. 
Chione sp. Pecten squamosa Gmelin. 
Corbula sp. Pecten sp. 
Glycimeris angulatus Lamarck. Spondylus sp. 
