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Vertebrata Palasiatica ›› 2002, Vol. 40 ›› Issue (02): 114-126.

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A NEW SPECIES OF IARIOSAURUS (SAUROVÆRYGIA: NOMOSAURIDAE) FROM TRIASSIC OF GUIZHOU, SOUTHWEST CHINA

Ll Jin-Ling, LIU Jun, RIEPPEL Olivier   

  • Online:2002-06-15 Published:2002-06-15

贵州兴义中三叠统法郎组竹杆坡段Lariosaurus一新种

李锦玲, 刘俊, 奥利维尔•瑞柏尔   

Abstract: The first Triassic sauropterygian to be described from China was Keichousaurus hui (Young, 1958) found in Xingyi, Guizhou. Shingyisaurus unexpectus, another saumpterygian found in Xingyi, was referred to the Simosauridae by Young (1965). It was identified as Nothosaurus or a closely related genus, and the name Shingyisaurus unexpectus was considered a nomen dubium (Rieppel, 1998). Here we report a well-preserved specimen from Xingyi, Guizhou Province. It represents the undoubted specimen and a new species of Inriosaurus ever found outside western Tethyan faunal province.

摘要: 记述了贵州兴义法郎组竹杆坡段鸥龙的一新种—兴义鸥龙(Lariosaurus xingyiensis sp. nov.)。兴义鸥龙以其上颞孔是眼眶长度的两倍,顶骨平台细长而不收缩,肪骨缺失外裸沟和旋后肌突,及肪骨短于股骨而有别于鸥龙的其他种。兴义鸥龙与意大利拉丁晚期的Lariosaurus valceresii最为相似。依据脊椎动物的对比,法郎组竹杆坡段的时代应为中三叠世晚期。