Sinuiju Formation Explained

Sinuiju Formation
Type:Geological formation
Age:Barremian-Aptian
Period:Aptian
Prilithology:Sandstone, siltstone, mudstone
Otherlithology:Andesite
Namedfor:Sinuiju city
Coordinates:40.1°N 124.4°W
Paleocoordinates:43.8°N 125.8°W
Subunits:8 members
Overlies:Precambrian basement
Thickness:>500m (1,600feet)

The Sinuiju Formation(신의주층) is a geologic formation in North Korea. Formerly of uncertain age, it is now thought to be Early Cretaceous. A variety of fossils are known from the formation, including those of anurognathid pterosaurs (possibly Jeholopterus) and birds such as the specimen of a very large enantiornithine with a long tibia and a long pygostyle. Frogs have also been found in the formation.[1] Numerous compression fossils of insects have also been found.[2]

Fossil content

Fish

Amphibians

Pterosaurs

Birds

Dinosaurs

Dinosauria indet (tooth)[6]

Mammals

Multituberculata indet.[7]

Insects[8]

Other invertebrates

See also

References

Bibliography

Notes and References

  1. 2017. Choi. S.. Lee. Y.N.. A review of vertebrate body fossils from the Korean Peninsula and perspectives. Geosciences Journal. 21. 6. 867–889. 10.1007/s12303-017-0040-6. 2017GescJ..21..867C . 133835817 .
  2. Jon . SuHyang . Won . CholGuk . So . KwangSik . Nam . TuYong . July 2019 . New Mesozoic insect fossils from the Democratic People's Republic of Korea . Cretaceous Research . en . 99 . 240–245 . 2019CrRes..99..240J . 10.1016/j.cretres.2019.02.019 . 134337948.
  3. So . Kwang-Sik . Jong . Tal-Mi . Won . Chol Guk . Jo . Song-Dae . 2022-08-05 . A fossil anuran from the Lower Cretaceous Sinuiju Formation, North Phyongan Province, Democratic People's Republic of Korea . Cretaceous Research . 140 . en . 105304 . 10.1016/j.cretres.2022.105304 . 2022CrRes.14005304S . 251425462 . 0195-6671.
  4. So . K. S. . Kim . P. H. . Won . C. G. . 2024 . First Articulated Rhamphorhynchoid Pterosaur from the Early Cretaceous of the Democratic People's Republic of Korea . Paleontological Journal . 57 . 1 supplement . S90–S94 . 10.1134/S003103012360018X .
  5. Early Cretaceous birds and pterosaurs from the Sinuiju Series, and geographic extension of the Jehol Biota into the Korean Peninsula. Gao, K.. Li, Q.. Wei, M.. Pak, H.. Pak, I.. 2009. Journal of the Paleontological Society of Korea. 57–61. 25. 1. 1225-0929.
  6. Won . Chol Guk . So . Kwang-Sik . Pak . Un Song . Ju . Il Yop . Ri . Chol Jun . Jon . Su Hyang . Ma . Jun . November 2022 . Discovery of Early Cretaceous Sinuiju Biota in the Democratic People's Republic of Korea and comparison with Jehol Biota in China . Cretaceous Research . en . 139 . 105303 . 10.1016/j.cretres.2022.105303. 2022CrRes.13905303W .
  7. Won . C. G. . So . K. S. . Jon . S. H. . December 2023 . The First Known Mesozoic Mammal in the Democratic People's Republic of Korea . Paleontological Journal . en . 57 . 7 . 826–832 . 10.1134/S0031030123070122 . 2023PalJ...57..826W . 0031-0301.
  8. http://www.fossilworks.org/cgi-bin/bridge.pl?a=collectionSearch&collection_no=200272 Paektodong, Sinuiju City
  9. Won et al., 2021
  10. So. Kwang- Sik. Won. Chol-Guk. 2022-02-16. A new fossil mantis fly (Insecta: Neuroptera: Mantispidae) from the Lower Cretaceous of the Democratic People's Republic of Korea. Cretaceous Research. 135 . en. 105175. 10.1016/j.cretres.2022.105175. 2022CrRes.13505175S . 246936524 . 0195-6671.

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