Fig. 1 in An enigmatic, possibly chemosymbiotic, hexactinellid sponge from the early Cambrian of South China

Fig. 1. Hexactinellid−like sponge Decumbispongia yuani gen. et sp. nov. from the Hetang Formation near Lantian, Anhui (A–D) and Niutitang Formation at Danzhai, Guizhou (E). A. Paratype NIGP154189, a flattened, near−complete specimen preserved as black iron minerals. B. Paratype NIGP154190. Fragment with relief showing spicule arrangement preserved at surface, consisting of irregularly clustered, orthogonal and diagonal hexactine−based spicules (B1). Camera lucida drawing of B1, clarifying poorly preserved spicule array (dashed line acts as reference for the most prominent spicule) (B2). C. Holotype NIGP154188, near−complete specimen showing annulations, tapering distal(?) end and weakly preserved spicules (arrowed). D. Probable juvenile specimen on slab with NIGP154188, showing straighter growth form and well−developed spicules (arrowed). E. NIGP154192.