| Gugyedong Formation | |
|---|---|
| Stratigraphic range: Aptian-Albian ~120–100 Ma PreꞒ Ꞓ O S D C P T J K Pg N | |
| Type | Geological formation |
| Unit of | Hayang Group |
| Lithology | |
| Primary | Siltstone, conglomerate |
| Location | |
| Coordinates | 36°00′N 128°30′E / 36.0°N 128.5°E / 36.0; 128.5 |
| Approximate paleocoordinates | 43°54′N 126°24′E / 43.9°N 126.4°E / 43.9; 126.4 |
| Region | Gyeongsangbuk-do |
| Country |  South Korea |
| Extent | Gyeongsang Basin |
  Gugyedong Formation (South Korea) | |
The Gugyedong Formation (Korean: 구계동층; Hanja: 龜溪洞層; RR: Gugyedong-cheung), also known as the Guyedong Beds, is an Aptian to Albian geologic formation in South Korea. Dinosaur remains diagnostic to the genus level are among the fossils that have been recovered from the formation.
Fossil content
The following fossils have been reported from the formation:
- Reptiles
- Ultrasaurus tabriensis- Nomen Dubium
- Dromaeosauridae indet. (="Koreanosaurus koreanensis")
- Sauropoda indet.
- Testudines indet.
- Flora
See also
References
- ^ Guyedong Formation in the Paleobiology Database
- Weishampel et al., 2004, pp.517-607
- ^ Kim, Haang-Mook (1983). "Cretaceous dinosaurs from Korea". Journal of the Geological Society of Korea. 19: 115–126.
- Lee, Yuong-Nam; Yang, Seong-Young; Park, Eun-Ju (1997). "Sauropod dinosaur remains from the Gyeongsang Supergroup, Korea". Paleontological Society of Korea Special Publication. 2: 103–114.
- ^ Kim, Haang Mook; Gishlick, Alan D.; Tsuihiji, Takanobu (April 2005). "The first non-avian maniraptoran skeletal remains from the Lower Cretaceous of Korea" (PDF). Cretaceous Research. 26 (2): 299–306. Bibcode:2005CrRes..26..299K. doi:10.1016/j.cretres.2005.01.001.