新疆塔里木盆地志留纪盔甲鱼类新知

刘玉海, 朱敏, 林翔鸿, 卢立伍, 盖志琨

A reappraisal of the Silurian galeaspids (stem-Gnathostomata) from Tarim Basin, Xinjiang

LIU Yu-Hai, ZHU Min, LIN Xiang-Hong, LU Li-Wu, GAI Zhi-Kun

图1 张氏西域鱼新增标本IVPP V 25445.1-3照片及其解释性素描

Fig. 1 Photographs of Xiyuaspis zhangi IVPP V 25445.1-3 and their interpretative drawingA. an incomplete head-shield (V 25445.1): A1, A2. internal mould and its interpretative drawing (V 25445.1a), A3. close-up of granulous ornamental tubercles (box region of A1), A4, A5. external mould and its interpretative drawing (V 25445.1b); B. a nearly complete ventral rim (V 25445.2);C. a nearly complete corner (C1) and its interpretative drawing (C2) (V 25445.3) Abbreviations: c. corner 角;ltca-c. the first to third lateral transverse canals issuing from the infraorbital canal 从眶下管发出的第一至三对侧横管;ltc1-3. the first to third lateral transverse canals issuing from the lateral dorsal canal 从侧背管发出的第一至三对侧横管;md.o. median dorsal opening 中背孔;orb. orbital opening 眶孔;vr. ventral rim 腹环