Permian radiolarians were recovered in the chert from five sections in central Busuanga lsland, Palawan and studied to establish radiolarian biostratigraphy. Four Permian interval zones have been established so far. The interval zones in ascending order are: Follicucullus monacanthus (late Early Permian), Follicucullus scholasticus (early Late Permian) Latentifistula similicutis (middle Late Permian), and Neoalbaillella ornithoformis (late Late Permian) Interval Zones.

The present zones are correlated with those of other authors of foreign and local studies. The ages of these zones are estimated by comparison of the constituent species with the established age-determined species.

Four new species are new to science and are described and illustrated herein.