Fig. 30. Brachythyrid brachiopods from the Tornaisian Muhua Formation, southern China. A–E in Silicified Mississippian brachiopods from Muhua, southern China: Rhynchonellides, athyridides, spiriferides, spiriferinides, and terebratulides

Fig. 30. Brachythyrid brachiopods from the Tornaisian Muhua Formation, southern China. A–E. Brachythyris sp. A, B, E. Three incomplete ventral valves, PKUM02−0548 (A), PKUM02−0549 (B), and PKUM02−0550 (E), in exterior (A1, B1, E1), interior (A2, B2, E2), and posterior (A3, B3, E3) views. C. Incomplete ventral valve, PKUM02−0551, in exterior (C1) and interior (C2) views. D. Slightly broken ventral valve, PKUM02−0552, with heavily abraded surface costation in exterior (D1), lateral (D2), interior (D3), inclined interior (D4), and posterior (D5) views. F–I. Skelidorygma sp. F. Incomplete ventral valve, PKUM02−0553, in exterior (F1), interior (F2), and lateral (F3) views. G. Almost complete shell, PKUM02−0554, in dorsal (G1), ventral (G2), lateral (G3), posterior (G4), and anterior (G5) views. H. Ventral valve, PKUM02−0555, in exterior (H1), interior (H2), and posterior (H3) views. I. Umbonal region of a ventral valve, PKUM02−0556, in posterior (I1) and posterodorsal (I2) views, showing delthyrial cover and pedicle opening. Sample MH1 (A–C), MH2 (D), GB (E, G, H), and GT (F). Scale bars 5 mm.