A New Specimen of Crichtonpelta benxiensis(Dinosauria:Ankylosaurinae) from the Mid-Cretaceous of Liaoning Province,China  

作　　者：YANG Jingtao YOU Hailu XIE Li ZHOU Hongrui 

机构地区：[1]School of Earth Sciences and Resource,China University of Geosciences,Beijing [2]Key Laboratory of Vertebrate Evolution and Human Origins of Chinese Academy of Sciences,Institute of Vertebrate Paleontology and Paleoanthropology,Chinese Academy of Sciences [3]College of Earth Sciences,University of Chinese Academy of Sciences [4]Geological Museum,China University of Geosciences,Beijing

出　　处：《Acta Geologica Sinica(English Edition)》2017年第3期781-790,共10页地质学报（英文版）

基　　金：provided by the National Natural Science Foundation of China(Grant No.41688103 and 41472020)

摘　　要：A new specimen of ankylosaurine dinosaur Crichtonpelta benxiensis is described. The new specimen is based on a nearly completely preserved skull from the same quarry as the holotype of the mid-Cretaceous Sunjiawan Formation in Shuangmiao, Beipiao City, Liaoning Province, China. Cladistic analysis incorporating new information from the new specimen resolves Crichtonpelta benxiensis is more advanced than basal members of Ankylosauridae （Kunbarrasaurus, Liaoningosaurus, Chuanqiiong, Cedarpelta, Gobisaurus and Shamosaurus） and represents the first diverging branch of Ankylosaurinae. Comparisons to other mid-Cretaceous ankylosaurid-bearing dinosaur assemblages in northern China indicate a late Early Cretaceous to early Late Cretaceous age for the Shuangmiao dinosaur assemblage.A new specimen of ankylosaurine dinosaur Crichtonpelta benxiensis is described. The new specimen is based on a nearly completely preserved skull from the same quarry as the holotype of the mid-Cretaceous Sunjiawan Formation in Shuangmiao, Beipiao City, Liaoning Province, China. Cladistic analysis incorporating new information from the new specimen resolves Crichtonpelta benxiensis is more advanced than basal members of Ankylosauridae （Kunbarrasaurus, Liaoningosaurus, Chuanqiiong, Cedarpelta, Gobisaurus and Shamosaurus） and represents the first diverging branch of Ankylosaurinae. Comparisons to other mid-Cretaceous ankylosaurid-bearing dinosaur assemblages in northern China indicate a late Early Cretaceous to early Late Cretaceous age for the Shuangmiao dinosaur assemblage.

关 键 词：Shuangmiao MID-CRETACEOUS Ankylosauridae Ankylosaurinae Crichtonpelta 

分 类 号：Q915[天文地球—古生物学与地层学]