论文部分内容阅读
翼龙是已知的、最早飞上天际的脊椎动物,目前已经发现了成千上万件化石,代表着这一大家族从晚三叠世到晚白垩世在全球范围内的蓬勃发展史.自2004年甘肃盐锅峡地区首次报道翼龙足迹以来,中国陆续发现了一批翼龙足迹化石,绝大多数的足迹点都保存了翼龙的前后足迹.2013年,我们在盐锅峡地区发现了至少20个翼龙前足迹的凸型足迹,而没有发现任何后足迹,这些足迹可归于一个单独翼龙遗迹属——Pteraichnus.这是中国第一次发现由前足迹主导的翼龙足迹组合,这可能反映了翼龙前后足迹在同等保存条件下的不同深度.更重要的是,盐锅峡的这批翼龙足迹与当地发现的大量虫迹相关,一些足迹甚至就保存在虫迹面上,这些虫迹包括Cochlichnus,Spongeliomorpha和Paleophycus,因此推断这批翼龙造迹者很可能以这些无脊椎动物造迹者为食.
Pterosaur is the first known vertebrate to fly to the sky. Till now, thousands of fossils have been discovered, representing the booming history of this large family from the Late Triassic to the Late Cretaceous in the world. Since the first report of the Pterosaur Footprint in the Yanghuasia area in Gansu in 2004, a number of pterosaur fossils have been discovered in China, with the vast majority of footprints preserved before and after the Pterosaur. In 2013, Found at least 20 pterosaur footprints of the convex footprint, but did not find any hind footprints, these footprints can be attributed to a single pterosaur genera - Pteraichnus. This is the first time China found the predator-dominated pterosaur footprint This may reflect the different depths of pterosaur footprints under the same preservation conditions.More importantly, these pterosaurs of the Yangho Gorge are related to a large number of locally found worms, and some of the footprints are even stored in insect tracks On the surface, these insects include Cochlichnus, Spongeliomorpha and Paleophycus, thus inferring that these pterosaurs probably feed on these invertebrates.