2007年初,南京的刘华松先生和沈斌先生在南京六合区横梁处收集雨花石时,从一雨花石贩子手中收购到一块保存较好、较大的动物颌骨化石,后携带此化石请求中科院南京地质古生物研究所鉴定,看看它属什么动物化石?有无价值?这是一块较大型的食草类哺乳动物的下颌骨,上面保存5枚较完整的臼齿。由于此类化石在南京未发现过,在查看有关资料后,认为 At the beginning of 2007, when Mr. Liu Huasong and Mr. Shen Bin of Nanjing collected the stone in the beams of Liuhe District in Nanjing, they bought a piece of well preserved and large animal jaw bone fossil from a rain stone dealer and then asked the Chinese Academy of Sciences for the geological and paleontological Institute identification to see what animal fossils it is worth? Is this a large herbivorous mammal mandible, save 5 more intact molars. Since such fossils have not been found in Nanjing, after reviewing the relevant information, we think