云南中三叠世拱鱼目一新属种及早期铰齿鱼类系统发育关系再评估

徐光辉, 马昕莹, 吴飞翔, 任艺

A Middle Triassic kyphosichthyiform from Yunnan, China, and phylogenetic reassessment of early ginglymodians

XU Guang-Hui, MA Xin-Ying, WU Fei-Xiang, REN Yi

Fig. 4 Skull and pectoral girdle of Yudaiichthys eximius gen. et sp. nov., IVPP V 20431 Abbreviations: ang. angular; ao. antorbital; br. branchiostegal rays; cl. cleithrum; den. dentary;dhy. dermohyal; dpt. dermopterotic; dsp. dermosphenotic; es. extrascapular; fr. frontal; gu. gular;io. infraorbital; iop. interopercle; la. lacrimal; mx. maxilla; n. nasal; npp. nasal process of premaxilla;op. opercle; pa. parietal; pas. parasphenoid; pcl. postcleithrum; pl-a. anterior pit-line; pl-m. middle pit-line; pl-p. posterior pit-line; pm. premaxilla; pop. preopercle; pt. posttemporal; qj. quadratojugal; r. rostral;scl. supracleithrum; so. suborbital; sop. subopercle; su. supraorbital; vo. Vomer