三疊中國龍的模式標本IVPP V34出土於中國雲南省祿豐組的張家窪地層,這是由暗紅色沉積物形成的岩床,年代估計為侏羅紀早期,約1億9600萬至1億8300萬年前。在此地發現的中國龍標本有:IVPP V97(postcrania)、IVPP V36(牙齒)、IVPP 37(牙齒)、IVPP V88(髂骨)、IVPP V35(牙齒和顱後骨骼)、IVPP V100、IVPP V48(牙齒和顱後骨骼),由楊和卞在1938年發現。FMNH CUP 2001-2003由E. Oehler和胡發現。FMNH CUP 2097、FMNH CUP 2098、FMNH CUP 2004、FMNH CUP 2005由楊和卞在1948年於張家窪岩層發現。
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