Hasandong Formation
| Hasandong Formation | |
|---|---|
| Stratigraphic range: Aptian-Albian ~ | |
| Type | Geological formation |
| Unit of | Shindong Group |
| Underlies | Jinju Formation |
| Overlies | Nakdong Formation |
| Thickness | 1200 metres |
| Lithology | |
| Primary | Mudstone |
| Other | Shale, sandstone |
| Location | |
| Coordinates | 35°06′N 128°00′E / 35.1°N 128.0°E |
| Approximate paleocoordinates | 41°18′N 128°06′E / 41.3°N 128.1°E |
| Region | North Gyeongsang Province |
| Country |  South Korea |
  Hasandong Formation (South Korea) | |
The Hasandong Formation is an Early Cretaceous (Aptian to Albian) geologic formation in South Korea. It has been dated to the late Aptian and earliest Albian, between 118.0 ± 2.6 Ma and 112.4 ± 1.3 Ma.[1] Dinosaur remains diagnostic to the genus level are among the fossils that have been recovered from the formation.[2] Tracks of the pterosaur ichnogenus Pteraichnus have also been recovered from the unit.[3]
Fossil content
- Carcharodontosauridae indet.[4]
- Hadongsuchus acerdentis[5]
- Chiayusaurus asianensis? (possibly a synonym of Chiayusaurus lacustris) - "Tooth."[6]
- Pukyongosaurus milleniumi - "Cervical and dorsal vertebrae, ribs, limb and girdle elements."[6][7]
See also
References
- ^ Lee, Tae-Ho; Park, Kye-Hun; Yi, Keewook (October 2018). "Nature and evolution of the Cretaceous basins in the eastern margin of Eurasia: A case study of the Gyeongsang Basin, SE Korea". Journal of Asian Earth Sciences. 166: 19–31. doi:10.1016/j.jseaes.2018.07.004.
- ^ Weishampel, et al. (2004). "Dinosaur distribution." Pp. 517-607.
- ^ Y.-N. Lee, H.-J. Lee, J. and Y. Kobayashi. 2008. New pterosaur tracks from the Hasandong Formation (Lower Cretaceous) of Hadong County, South Korea. Cretaceous Research 29:345-353.
- ^ Yun, Chan-gyu (2020-06-02). "A Carcharodontosaurid tooth from the Hasandong Formation (Lower Cretaceous) of South Korea". Mongolian Geoscientist. 50: 2–10. doi:10.5564/mgs.v50i0.1325. ISSN 2663-5151.
- ^ Y. Hangjae, Y. Yungnam, and Y. Hyesu. 2005. 경남 하동군 하산동층(전기 백악기)에서 산출된 악어 두개골의 골격학과 계통분류학적 연구 [A new protosuchian (Archosauria: Crocodyliformes) skull from the Hasandong Formation (Lower Cretaceous) of Hadong, Korea]. Korean Journal of Paleontology 21(1):146-150 (pdf at http://imgsvr.riss4u.net/contents3/td_contents8/09984/433/09984433.pdf)
- ^ a b "Table 13.1," in Weishampel, et al. (2004). Page 271.
- ^ Z. Dong, I. S. Paik, and H. J. Kim. 2001. A preliminary report on a sauropod from the Hasandong Formation (Lower Cretaceous), Korea. In T. Deng, Y. Wang (eds.), Proceedings of the Eighth Annual Meeting of the Chinese Society of Vertebrate Paleontology 41-53.
Bibliography
- Weishampel, David B.; Peter Dodson, and Halszka Osmólska (eds.). 2004. The Dinosauria, 2nd edition, 1–880. Berkeley: University of California Press. Accessed 2019-02-21. ISBN 0-520-24209-2