古地理学报2013，Vol.15Issue(4)：517-528,12.DOI:10.7605/gdlxb.2013.04.041
山东沂沭断裂带早白垩世晚期恐龙足迹特征差异性
Differences in characteristics of dinosaur footprints in the late Early Cretaceous, Yishu Rifting Zone, Shandong Province
摘要
Abstract
In recent years,abundant dinosaur footprint fossils have been discovered in the Lower Cretaceous (Dasheng Group),the south of Yishu Rifting Zone,Shandong Province.Based on our research,many different features of these footprints,including footprint types,morphology,depth of footprints,etc.,have been noticed and listed as follows:(1) As for the footprint makers,theropod and ornithopod tracks were dominant in Junan County,while in Linshu,Tancheng and Donghai,the sauropod tracks were primary.(2) As for the footprint size,the theropod footprints from Junan were divided into Type Ⅰ and Type Ⅱ,but in Donghai,only the Type Ⅱ were present.In addition,the digit angle of theropod footprints in Junan is smaller than that in Donghai,which may be caused by different dinosaur species.The ornithopod footprints from Junan are smaller than those of Donghai.Moreover,the sauropod footprints are small in Tancheng,but are similar to those of Junan,Linshu and Donghai.(3) Because of the diverse humidity,viscosity and sediment granularity,the depth of footprints from the Donghai,Tancheng and Junan are various.Based on all the above-mentioned new discovery of dinosaur footprints in Zhucheng,east of the Yishu Rifting Zone,in early Early Cretaceous,we conclude that a large and prosperous dinosaur fauna lived in Yishu Rifting Zone in the Early Cretaceous.Furthermore,the dinosaur footprints from Shandong Province in the Early Cretaceous were excellent materials for deeply research on distribution and evolution of the dinosaurs and palaeogeography in the Late Mesozoic of the North China and even the Northeast Asia.关键词
山东/沂沭断裂带/恐龙足迹/下白垩统/差异性Key words
Shandong/Yishu Rifting Zone/dinosaur footprints/Lower Cretaceous/differences分类
天文与地球科学引用本文复制引用
彭楠,柳永清,旷红伟,吴清资,刘海,陈军,许欢,徐加林,汪明伟..山东沂沭断裂带早白垩世晚期恐龙足迹特征差异性[J].古地理学报,2013,15(4):517-528,12.基金项目
国家自然科学基金重点项目(编号:90914003),国家自然科学面上基金(编号:41272021),中国地质科学院地质研究所基本业务费项目(编号:J1106)及中国地质调查局项目(编号:1212011085477,1212011120105,12120113096500)共同资助 （编号:90914003）
