HASANDONG VERTEBRATE FOSSILS IN SOUTH KOREA
The Hasandong Formation (Early Cretaceous) is the most productive so far for vertebrate body fossils in the Gyeongsang Supergroup. Most bones occur as scattered, broken, and isolated pieces, which had probably undergone long aerial exposure, transportation, and scattering into lower land in the floodplain before burial. To date, vertebrate faunas from the Hasandong Formation are Lepidotes and Sinamia fishes, trionychoid turtles, protosuchian crocodyliforms, pterodactyloid pterosaurs, and dinosaurs. Dinosaurs include allosaurid and megalosaurid theropods, Pukyongosaurus millenniumi, Chiayusaurus asianensis, camarasaurid, titanosaurid sauropods, and a iguanodontian dinosaur. In addition, ovaloolith-type dinosaur eggs are recognized with theropod, sauropod, and ornithopod trackways. Although it is not possible to compare in detail Hasandong vertebrate faunas with contemporaneous Chinese, Mongolian, and Japanese ones, it is notable that euhelopodid Pukyongosaurus millenniumi and Chiayusaurus asianensis shows the affinity with Chinese sauropod dinosaurs in the Early Cretaceous. Also, a new protosuchian crocodyliform seems to be closely related with Mongolian protosuchians.
Yuong-Nam Lee Hang-Jae Lee
Korea Institute of Geoscience and Mineral Resources, Daejeon 305~350, South Korea
国际会议
2005·河源国际恐龙学术研讨会(2005 Heyuan International Dinosaur Symposium)
广东河源
英文
129-139
2005-04-08（万方平台首次上网日期，不代表论文的发表时间）