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地质通报 2012
AprobablecrouchingtheropoddinosaurtracefromtheTuchengziFormationinChichengarea,HebeiProvince,China, PP. 20-25 Keywords: crouchingtheropodtrace,Therangospodusisp.,cf.Megalosauripusisp.,TuchengziFormation,Jurassic-Cretaceousboundary Abstract: AprobabletheropoddinosaurcrouchingtraceandassociatedtracksfromtheTuchengzi(Houcheng)FormationofSiliangMountain,ChichengCounty,HebeiProvince,Chinaarethelargesttheropodtrackscurrentlyknownfromtheformation.Althoughthecrouchingtracelacksmanusandtailmarks,thetracesareinterpretedasmadebyacrouchingtheropodbecausetheyincludealeftmetatarsalimpressionandassociatedischial,andpossiblypubic,callositytraces.Thisrepresentsthethirdknownexampleofanasymmetriccrouchingpositionadoptedbyatheropod.Keywords：crouchingtheropodtrace；Therangospodusisp.；cf.Megalosauripusisp.；TuchengziFormation；Jurassic-Cretaceousboundary
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