... the Furongian Sandu Formation in South China that provides important new data illuminating the origin of Glyptocystitida, a common Palaeozoic clade of echinoderms. Sanducystis sinensis n. gen. n. sp. displays an organized theca bearing three circlets of plates (basal, infralateral and lateral), a laterally...

... with the hydropore and/or gonopore, are found repeatedly in ‘cystoids’ with five ambulacra (e.g., Figs. 3 , 5 , 8 , 14 ). In some taxa with fewer than five ambulacra, the same basic pattern is retained ( Figs. 10 – 12 , 15 ) and was present in the recently described Sanducystis Zamora et al., in press...