High-resolution sampling was performed on four Permian sections in Guangxi Province, South China (Gujingling, Sanpaoling, Guoyuan and Yutouling sections). We report abundant and well-preserved Guadalupian–Lopingian radiolarian assemblages, with 25 species belonging to three genera of the order Albaillellaria. Among them, the most abundant genus is Follicucullus with 17 species: F. bipartitus, F. charveti, F. sp. cf. F. charveti, F. dilatatus, F. falx, F. sp. cf. F. falx, F. guangxiensis, F. hamatus, F. monacanthus, F. sp. cf. F. monacanthus, F. orthogonus, F. sp. cf. F. orthogonus, F. porrectus, F. scholasticus, F. sp. cf. F. scholasticus, F. ventricosus and F. sp. cf. F. ventricosus. On the basis of composite stratigraphic ranges, this study suggests four Interval Zones in ascending order, namely F. monacanthus, F. porrectus, F. scholasticus and F. charveti Interval Zones. We provide a phylogenetic model for Follicucullus based on their morphological affinities and stratigraphic distribution. The genus Follicucullus originated from Pseudoalbaillella fusiformis, with F. monacanthus as the forerunner species from which two contemporary species then radiated: F. dilatatus and F. porrectus. Follicucullus porrectus is a long-lasting species, it is abundant in our material and several Follicucullus lineages originated from it. In terms of evolution it is considered to be the ancestor of a number of Follicucullus species.

He, W., Zhang, Y., Zheng, Y., Zhang, K., Gui, B. & Feng, Q., June, 2008, A late Changhsingian (latest Permian) radiolarian fauna from Chaohu, Anhui and a comparison with its contemporary faunas of South China. Alcheringa 32, 199–222. ISSN 0311-5518. A well-preserved late Changhsingian radiolarian fauna (15 species attributed to 12 genera) is recorded from the upper part of the Talung Formation, Chaohu, Anhui Province, South China. This radiolarian fauna includes Entactinia itsukaichiensis, Entactinia sashidai, Triaenosphaera minutus, Hegleria mammilla, ?Wuyia dongpanica, Tetraspongodiscus stauracanthus, Tetrapaurinella discoidalis, Klaengspongus formosus, Klaengspongus spinosus, Paroertlispongus fontainei, Ormistonella elegans, Quadricaulis inflata, Ishigaum trifustis, Ishigaum obesum, and Foremanhelena robusta. This fauna is more diverse than the fauna from the Meishan section in Zhejiang Province but is less diverse than the fauna of the Dongpan section in Guangxi Province, South China. The new fauna incorporates a higher percentage of Latentifistularia forms than the fauna from the Meishan section, but incorporates a lower percentage of Latentifistularia and Albaillellaria forms than that from the Dongpan section. These differences could be due to deposition of the Chaohu sediments in deeper waters than at Meishan, but in shallower waters than at Dongpan.