Figure 31 in Middle to Late Ordovician (Darriwilian-Sandbian) Conodonts from the Dawangou Section, Kalpin Area of the Tarim Basin, Northwestern China

Figure 31. Yangtzeplacognathus jianyeensis (An & Ding, 1982). A–G, sinistral Pb element; A, NIGP 153135, AFT-X-K13/44, basal view (IY165-008); B, NIGP 153136, AFT-X-K13/44, upper view (IY165-001); C, NIGP 153137, AFT-X-K13/44, juvenile, upper view (IY165- 015); D, NIGP 153138, AFT-X-K13/42, upper view (IY164-009); E, NIGP 153139, AFT-X-K13/41, upper view (IY164-004); F–G, NIGP 153140, AFT-X-K13/40, F, upper view (IY163-038), G, upper view, close up showing fine reticular surface structure (IY163-039). H–L, dextral Pb element; H, NIGP 153141, AFT-X-K13/44, upper view (IY165-002); I, NIGP 153142, AFT-X-K13/44, basal view (IY165- 007); J, NIGP 153143, AFT-X-K13/43, upper view (IY164-010); K–L, NIGP 153144, AFT-X-K13/40, K, basal view (IY163-041), L, basal view, close up showing lamellar surface structure (IY163-042). Scale bars 100 µm, unless otherwise indicated.