东北阜新-锦州盆地及其他地点早白垩世晚期的两栖爬行类研究

两栖类和小型爬行类包括蛙类、蝾螈类、有鳞类等类群，是脊椎动物群的重要组份。化石记录显示晚侏罗世—早白垩世是两栖类和小型爬行类辐射演化的重要时期。基于近年来燕辽热河等特异埋藏生物群的新发现，我们对晚侏罗世——早白垩世早期两栖类和小型爬行类的演化有相对较好的认识，但早白垩世晚期的两栖类和小型爬行类化石较少。本项目采取传统古生物学（形态学和系统发育学）方法，使用高精度CT扫描、3D打印、骨组织学以及大数据等技术手段，通过研究东北阜新—锦州盆地沙海组—阜新组和其他地点相当地层中产出的大量两栖类和小型爬行类化石材料，补充这些类群在早白垩世晚期的化石记录，恢复它们在这一时期的演化历史及多样性演变规律，验证其多样性在晚白垩世时激增的假说，初步探讨热河生物群后同域生物群的演变。

Herps, including frogs, salamanders, squamates, turtles, are one of the important components of the vertebrates, and their fossil record shows that Late Jurassic-Early Cretaceous is an important period of radiation and evolution for herps. However, compared with the relatively better understanding on the herptofauna from Late Jurassic to early Early Cretaceous due to the well-preserved specimens discovered in last decades, we know much less about the late Early Cretaceous herptofauna. Employing the morphological and phylogenetic methods of the traditional paleontology and using high-resolution CT scan, 3D print, histological technique and Big data, the project will study the herp materials from the Shahai and Fuxin formations of Fuxin-Jinzhou Basin and corresponding horizons from other areas of Northeast China, to fill the gap of late Early Cretaceous herp record, reconstruct the evolutionary history of the herp groups during the time, test the idea that the high diversification of the herp groups happened during Late Cretaceous, and discuss the fate of Jehol biota based on the herptofaunal comprisions.