【摘 要】
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The fish swimming trail fossils are rare and, therefore, precious. The specimen described abroad are generally smaller or more poorly preserved. The specimens u
【机 构】
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Faculty of Earth Sciences
论文部分内容阅读
The fish swimming trail fossils are rare and, therefore, precious. The specimen described abroad are generally smaller or more poorly preserved. The specimens used in the present study and derived from the Mesozoic strata in Hengshan County, Shaanxi Province, China, are rare because of their completeness (with the length of the specimen reaching 4 m), exquisiteness and largeness in trace body. These specimens, classified as four ichnospecies, including two new ones, show the morphological pattern of the fish swimming trails. The trace fish bodies are calculated to be 32-92 cm long.
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