The Middle-Upper Jurassic dinosaur-pterosaur fauna in Shandong Province,China:Evidence from ichnology  

作　　者：Li-Da Xing Martin G.Lockley Bo-Lin Tong Hendrik Klein Chang Liu W.Scott Persons IV 

机构地区：[1]State Key Laboratory of Biogeology and Environmental Geology,China University of Geosciences,Beijing,100083,China [2]School of the Earth Sciences and Resources,China University of Geosciences,Beijing,100083,China [3]Dinosaur Trackers Research Group,University of Colorado Denver,PO Box 173364,Denver,CO,80217,USA [4]Saurierwelt Palaontologisches Museum,Alte Richt 7,D-92318,Neumarkt,Germany [5]Mace Brown Museum of Natural History,Department of Geology and Environmental Geosciences,College of Charleston,Charleston,SC,USA

出　　处：《Journal of Palaeogeography》2023年第3期419-433,共15页古地理学报（英文版）

基　　金：the National Natural Science Foundation of China(No.41888101);the 111 project(B20011);the Fundamental Research Funds for Central Universities(265QZ201903).

摘　　要：Tracks previously examined between 2002 and 2015 from an incompletely-studied,and now partially lost tracksite site in the Santai Formation of Shandong Province were restudied based on new ex-cavations of additional surfaces.In contrast to the previous reports of tridactyl tracks,including Grallator,the present study discovered an additional assemblage of unequivocal pterosaur tracks(Pteraichnus)and a possible didactyl deinonychosaurian track.The age of the Santai Formation is controversial but it is probably Late Jurassic,which corresponds to the epoch when pterosaur tracks appear worldwide.Age interpretations,based on palynology and isotopic data,tentatively suggests an earlier Middle-Late Jurassic age and might suggest that the pterosaurian tracks are as old or somewhat older than any previously reported.

关 键 词：Santai Formation THEROPOD Deinonychosaur PTEROSAUR 

分 类 号：P534.52[天文地球—古生物学与地层学] Q915[天文地球—地质学]