Sphinctozoan sponges from the Permian reefs of South China

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Abstract
Middle and Late Permian sphinctozoan sponges described here are from the Middle Permian Maokou and the Upper Permian Wujiaping and Changxing Formations. Most are from near Xiangbo, northwestern Guangxi, but a few are from Upper Permain patch reefs from Laolongdong in eastern Sichuan. The new genera, the porate Imbricatocoelia and the aporate Glomocystospongia, are described, the latter as the type genus for the new family Glomocystospongiidae. New species described include Amblysiphonella specialis, Amblysiphonella spinosa, Amblysiphonella sp. A, Amblysiphonella sp. B, Colospongia maxima, Colospongia sp. A, Imbricatocoelia elongata, I. irregulara, I. obconica, I. paucipora, Neoguadalupia explanata, Subascosymplegma? paracatenulata, Rhabdactinia depressa, R. irregulara, R. squamula, Salzburgia nana, Glomocystospongia gracilis, Sollasia absita, and S. spheroida. New occurrences of Amblysiphonella merlai? Parona, 1933, Lichuanospongia typica Zhang, 1983, Polycystocoelia huajiapingensis Zhang, 1983, Intrasporeocoelia hubeiensis Fan and Zhang, 1985, Rhabdactinia columnaria Yabe and Sugiyama, 1934, Uvanella irregulara Ott, 1967, Stromatocoelia asiatica Zhang and Fan (in Fan and Zhang, 1985), and Tebagathalamia cylindricum Senowbari-Daryan and Rigby, 1988, are reported. The described assemblage represents the most diverse Permian sphinctozoan sponge fauna known from Asia.