Sinuiju Formation
| Sinuiju Formation | |
|---|---|
| Stratigraphic range: Barremian-Aptian ~ | |
| Type | Geological formation |
| Sub-units | 8 members |
| Overlies | Precambrian basement |
| Thickness | >500 metres (1,600 ft) |
| Lithology | |
| Primary | Sandstone, siltstone, mudstone |
| Other | Andesite |
| Location | |
| Coordinates | 40°06′N 124°24′E / 40.1°N 124.4°E |
| Approximate paleocoordinates | 43°48′N 125°48′E / 43.8°N 125.8°E |
| Country |  North Korea |
| Type section | |
| Named for | Sinuiju city |
  Sinuiju Formation (North Korea) | |
The Sinuiju Formation is a geologic formation in North Korea. Formerly of uncertain age, it is now thought to be Early Cretaceous. Dinosaur remains diagnostic to the genus level are among the fossils that have been recovered from the formation.[1] Compression fossils of insects are also known from the formation.[2]
Fossil content
- Anurognathidae indet.
- Confuciusornithidae indet. (known colloquially as the Archaeopteryx of Korea)
- "Proornis coreae" (?Avialae indet.)[citation needed]
- Insects[3]
See also
References
- ^ Weishampel, et al. (2004). "Dinosaur distribution." Pp. 517-607.
- ^ Jon, SuHyang; Won, CholGuk; So, KwangSik; Nam, TuYong (July 2019). "New Mesozoic insect fossils from the Democratic People's Republic of Korea". Cretaceous Research. 99: 240–245. doi:10.1016/j.cretres.2019.02.019.
- ^ Paektodong, Sinuiju City at Fossilworks.org