The first radiolarian fauna obtained from Permian carbonates in Thailand is of late Kungurian age and is present in the basal beds of the carbonate–mudstone–chert Phap Pha Formation, Ratburi Group. This succession contains several species of the radiolarian Pseudoalbaillella, and some sponge spicules. The radiolarian fauna consists of abundant Pseudoalbaillella aidensis and P. elegans together with P. fusiformis, P. longtanensis, P. m. rhombothoracata and P. sp. A. Other species include P. cf. aidensis, P. cf. elongata, P. cf. fusiformis, P. cf. ishigai, P. cf. lomentaria, P. cf. longicornis, P. cf. longtanensis, P. cf. ornata, P. cf. simplex, P. cf. m. scalprata, P. cf. m. postscalprata, P. cf. u–forma m. I, P. cf. u–forma m. II, and P. spp. The radiolarian assemblage suggests its correlation to the P. longtanensis Zone which, in turn, is correlated to the P. ishigai Zone of late Kungurian age. The occurrence of an abundant but generically low–diversity radiolarian fauna suggests restricted physical conditions and, with other evidence, suggests deposition along a cool deglaciating or deglaciated continental margin with an abundance of silica possibly provided by glacial meltwaters. The abundant chert in the Phap Pha Formation is part of the widespread Permian Chert Event.

从泰国的二叠纪碳酸盐中获得的第一个放射虫动物群是昆古里亚时代晚期，并存在于Ratburi组的碳酸盐-泥岩-cher石Phap Pha组的基床中。这一系列包含放射虫假单胞菌属的几种，以及一些海绵针。放射虫动物由丰富的Pseudoalbaillella aidensis和P.线虫连同P.羊栖菜，P. longtanensis，P.米。Rhombothoracata和体育。A.其他物种包括P. cf. aidensis，P.比照。泡桐，P.比照 羊栖菜，P.比照 石狩，P. cf. lomentaria，P.比照。Longicornis，P. cf. longtanensis，P.比照。姬蛙，P.比照。单纯，P.比照 米 scalprata，P.比照 米 postscalprata，P.比照 你–形式m。我，P.比照 你–形式m。II和P。spp。放射虫的组合表明其与龙潭疟原虫区的相关性，而龙潭疟原虫区又与昆古里亚时代晚期的石ish疟原虫区相关。大量但一般为低多样性的放射虫动物的出现表明物理条件受到限制，并且还有其他证据表明，沿冰河融化或冰消的大陆边缘沉积，冰川融水可能提供大量的二氧化硅。Phap Pha组丰富的石是广泛的二叠纪ian石事件的一部分。