Fig. 9 in Stromatoporoids from a Middle Devonian reef in South China and their palaeoecological implication

Fig. 9. Stromatoporoids from the Jiwozhai reef, Jiwozhai Member, Dushan Formation, Givetian, Middle Devonian; Dushan, Guizhou, South China. A, B.?Habrostroma laminosum (Lecompte, 1952) A. NIGP 177055; longitudinal section of the laminar form; B. NIGP 177056; B1, longitudinal section of the high domical form; B2, poor preservation of tangential section showing the dense structure; B3, enlargement of B1, showing possible microreticulate microstructure (arrow). C. Parallelopora sp., NIGP 177057; C1, longitudinal section, note the microreticulate microstructure; C2, tangential section showing the autotubes.