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猴家山组是由“猴家山统”演变而来,“猴家山统”系徐嘉炜1956年创建,作为馒头组以下的一个地层单元,并与滇东沧浪铺组和筇竹寺组相对比。苏、鲁、皖交界地区有无猴家山组的存在?徐嘉炜认为有相当淮南的白鹤山层存在;潘江等认为徐州一带缺失沉积;毕德昌等认为淮北有猴家山组的存在,但都缺少化石依据。 1974年,我们在本区的馒头组肝紫色页岩之下的灰色中厚层豹皮灰岩中,首次发现了Megapalaeoenus,从而肯定了猴家山组的存在,并从生物地层上提供了对比依据。
The Monkey Mountain Group was evolved from “Monkey Family”, and “Monkey Family” was created by Xu Jiawei in 1956 as a strata unit below the Miantu Formation and in contrast with the Canglangpu Formation and Qiongzhusi Formation in eastern Yunnan. Xujiawei think there is a considerable mountain Baihe layer in Huainan; Panjiang and other places that lack of sediment deposition in Xuzhou; Bi Dechang, etc. that there is the existence of the Monkey Mountain Group in Huaibei, but the lack of fossils in accordance with. In 1974, we found Megapalaeoenus for the first time in the gray-medium leopard limestone under the steamed bun-group liver-liver shale in this area, thus affirming the existence of the Houjiashan Formation and providing a comparative basis from the biostratigraphy .