在中更新世早期，阳春地区的岩溶洞穴开始发育。
Inthe early middle pleistocene, the karst caves in Yangchun area began to develop.
湖北省郧西县白龙洞古人类遗址属于中更新世早期，发掘出表面带有痕迹的骨化石标本。
Some fossil bones with surface marks were uncovered in Bailong Cave, a palaeo-anthropological site of the early stage of Middle Pleistocene.
中更新世与晚更新世早期的海进较弱，仅有海陆过渡相沉积。
The transgressions of Middle Pleistocene and the early Late Pleistocene were weak and represented by deposits of the transitional nature from Marine to continental facies...
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