论文部分内容阅读
采自贵州省安顺地区法郎组瓦窑段的鳍龙类化石 ,并确立其为一新属种———黄果树安顺龙 (Anshunsaurushuangguoshuensisgen .etsp .nov .) .其没有下颞孔 ,前颌骨组成吻部的大部分 ,鼻骨小 ,鼻孔接近眼眶 ,说明它是鳍龙类 .它的鼻骨被前颌骨向后延伸与额骨相接而隔开 ,左右额骨愈合 ,因而被归入真鳍龙类 .黄果树安顺龙以个体较大 ,吻部长 ,上颞孔比眼眶稍小的综合特征而区别于其他三叠纪的鳍龙类 .黄果树安顺龙的个体较大 ,吻部较长 ,鼻骨与前额骨相接触 ,大的松果孔 ,鳞骨不在上颞孔后相连 ,表明它与Pistosaurus有较近的亲缘关系 .黄果树安顺龙和鱼龙来自新的海生四足动物化石层位 ,代表了我国三叠纪一个新的海生四足动物化石组合
It was collected from the fin dragon fossils of the Fawao Formation in Anshun area of Guizhou Province and was established as a new genus --- Anshunsaurushuangguoshuensisgen.etsp.nov. There is no inferior temporal foramina, Most of the snout, nasal bone is small, close to the orbit of the nose, indicating that it is a longlassosaurus.Its nasal bone is extended backward by the front jaw and the frontal bone separated from the left and right frontal bone heal, which is classified as true fin Dragon kind.Huangguashu Anshunong is distinguished from other Triassic finches on the basis of the larger individual size, the length of the ministry, the superior temporal cavity, and the size of the orbital rim.Huangguoshu Anshunlong is larger in size and has a longer snout, Contact with the prefrontal bone, the large pineal hole, the absence of squamous bone connected to the posterior temporal hole, indicating that it has a closer genetic relationship with Pistosaurus. Huangguashu Anlong and Ichthyosaur from the new marine quadrupedal fossil layer, on behalf of A new Triassic marine four-legged animal fossil assemblage in China