Fig. 7 in Stromatoporoids from a Middle Devonian reef in South China and their palaeoecological implication

Fig. 7. Stromatoporoids from the Jiwozhai reef, Jiwozhai Member, Dushan Formation, Givetian, Middle Devonian; Dushan, Guizhou, South China. A, B. Stictostroma saginatum (Lecompte, 1951) A. NIGP 177050; A1, tangential section showing the isolated pillars and locally irregular skeleton; A2, longitudinal section, note the prominently vertically erected mamelon; A3, enlargement of A2, note the coarsely ordinicellular microstructure (arrows). B. NIGP 177051; longitudinal section, note the encrusting skeleton over Thamnopora sp. debris and a solitary rugose coral. C. Synthetostroma actinostromoides Lecompte, 1951, NIGP 177052; C1, longitudinal section; C2, tangential section.