中国甘肃省中铺地区下白垩统河口群的兽脚类与蜥脚类足迹组合(英文)  

THEROPOD AND SAUROPOD TRACK ASSEMBLAGES FROM THE LOWER CRETACEOUS HEKOU GROUP OF ZHONGPU,GANSU PROVINCE,CHINA

作　　者：邢立达[1] 李大庆 Lockley M G 张建平[1] 尤海鲁[4] Klein H Marty D Persons IV W S 彭措 

机构地区：[1]中国地质大学(北京)地球科学与资源学院,北京100083 [2]甘肃地质博物馆,兰州730040 [3]Dinosaur Tracks Museum,University of Colorado Denver,PO Box 173364,Denver,CO 80217,USA [4]中国科学院古脊椎动物与古人类研究所,北京100044 [5]Saurierwelt Pal/iontologisches Museum,Alte Richt 7,D-92318 Neumarkt,Germany [6]Naturhistorisches Museum Basel,Augustinergasse 2,CH-4001 Basel,Switzerland [7]Department of Biological Sciences,University of Alberta 11455 Saskatchewan Drive,Edmonton,Alberta T6G 2E9,Canada

出　　处：《古生物学报》2014年第3期381-391,共11页Acta Palaeontologica Sinica

基　　金：中国地质大学(北京)2013年度研究生科技创新扶持奖励基金资助

摘　　要：近年来,中国西北部兰州-民和盆地的中铺地区河口群发现了一批恐龙骨骼化石和足迹化石。中铺地区的蜥脚类与兽脚类足迹组合相对丰富,但大多数标本保存较差。大夏足迹点发现了保存较好的类似亚洲足迹的跷脚龙类足迹(Asianopodus-like grallatorid tracks),足迹有着中趾弱前凸(weak mesaxony)。李家沟一号点的足迹组合包括了较大的兽脚类足迹和大型的、非三趾型四足类足迹,后者可能是蜥脚类足迹。李家沟二号点的足迹为多层的蜥脚类足迹,这表明了这类恐龙的活跃性,巨龙类的骨骸也可能来自同一层位。虽然中铺足迹组合不如同属河口群的盐锅峡足迹组合那么具有多样化与得以充分暴露,但依然体现了该地区以及中国早白垩世地层的典型足迹组合。In recent years, several sites with fossil dinosaur bones and tracks were found in the Hekou Group of the Zhongpu area from the Lanzhou-Minhe Basin in northwestern China. Theropod and sauropod track assemblages from the Zhongpu area are relatively abundant, although poorly preserved in most cases. The Daxia tracksite reveals moderately well preserved, small Asianopodus-like grallatorid tracks with weak mesaxony. The Lijiagou tracksite 1 assemblage reveals larger theropod tracks and poorly defined tracks of large non-tridactyl quadrupeds, probably sauropods. The Lijiagou traeksite 2 assemblage reveals multiple track-bearing levels indicating the activity of sauropods, possibly titanosaurs known by skeletal remains from the same unit. The assemblages are similar to others in the region and typical for the Lower Cretaceous of China, though less diverse than those of the large, well-exposed Hekou Group ichnofaunas from the Yanguoxia tracksites.

关 键 词：亚洲足迹 蜥脚类 兽脚类 恐龙足迹 下白垩统 甘肃省 

分 类 号：Q915[天文地球—古生物学与地层学]