辽宁省四合屯下白垩统义县组的兽脚类足迹化石和可能的造迹者.pdf

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1、第28卷第6期地质通报Vo1．28．NO．62009年6月GEoLoGICALBULLETIN0FCHINAJun．，2009Theropod(Dinosauria：Saurischia)tracksfromTL0Werret·aCe0USI】l[71●Xl●an1tnI。0rmat』l●0nat』f1■l1netJUnVillage，LiaoningProvince，Chinaandpossibletrackmakers辽宁省四合屯下白垩统义县组的兽脚类足迹化石和可能的造迹者XINGLi—da，Jer

2、aldD．HARRIS，FENGXiang—yang3，ZHANGZhi-jUH邢立达，杰瑞德D．哈里斯，冯向阳。．张志军1．InstituteofGeology,ChineseAcademyofGeologicalSciences，Bering100037，China,"2．icalSciencesDepartment，DixieStateCollege，225South700Eo$t~St．George，84770，USA；3．DepartmentofPalaeontology,Geological

3、MuseumofChina,Beijing100034，China1．中国地质科学院地质研究所，北京100037；2．迪克西州立学院自然科学系，美国犹他84770；3．中国地质博物馆古生物中心，北京100034XingLD，JeraldDH，FengXY，ZhangZJ．Theropod(Dinosauria：Saurischia)tracksfromLowerCretaceousYixi_anFormationatSihetunVillage，LiaoningProvince，Chinaandposs

4、ibletrackmakers．GeologicalBulletinofChina,2009，28(6)：705-712Abstract：Hereinwedescribethreeandonehalffootprintsthatpe~aintoGrallatorisp．fromtheLowerCretaceousYixianFormation，Sihetun，LiaoningProvince，China．Thisisthefirstdescriptionofdinosaurfootprintsfromt

5、heYixianFormation．Thetrackswereleftbvat1eastthreeindividualtrackmakers．Itisestimatedfromthetracksthatthebodylengthsofthetrackmakerswere1．51m，whichistheaveragelengthofknowntheropodsfromtheYixianFormation．ThefeetofCaudipteryxandSinosauropteryxwerereconstru

6、ct—ed．TheformerwasmoresimilarthanthelattertOtheGrallatorisp．trackoutlines．FeetcapableofreNsteringGrallatormorphotypetracksmaythereforehavebeenwidelydistributedinsmal—mediumsizedtheropods(otherthandromaeosauridsandtroodontids)fromtheYixianFormation．Keywor

7、ds：SihetunVilage，LiaoningProvince；LowerCretaceousYixianFormation；Grallator；trackmaker摘要：记述了辽宁省四合屯下白垩统义县组三个半恐龙足迹，归入似鹬龙足迹(亦译为跷脚龙足迹)一未定种(Grallatorisp．)。这是义县组恐龙足迹化石的首次描述。该行迹至少由3个造迹者所造。从足迹推断恐龙体长1．51m，属于义县组兽脚类恐龙较为ReceivedonFebmary4，2009；revised0nFebruary25，200

8、9；acceptedonMarch5，2009；publishedonJune15，2009ThisstudyissupportedbytheResearchonNationalGeologicalSpecimenConecfionOutlineoftheMinistryofLandandResourcesP．RC(No．1210811302)Author：XINGLi—da(1982一)，male，presentlyspecializes