Fig. 11 in Stromatoporoids from a Middle Devonian reef in South China and their palaeoecological implication

Fig. 11. Stromatoporoid Stachyodes fasciculata Dong in Dong et al., 1989, from the Jiwozhai reef, Jiwozhai Member, Dushan Formation, Givetian, Middle Devonian; Dushan, Guizhou, South China. A. NIGP 177060; longitudinal section and tangential section of the dendroid form. B. NIGP 177061; longitudinal section showing the thick pachysteles and thin pachystromes. C. NIGP 177062; C1, longitudinal section of the bulbous form; C2, enlargement of C1, illustrating regular skeleton; C3, tangential section showing the autotubes and astrorhizal canals; C4, enlargement of C2, showing the coarsely striated microstructure (arrow).