Jinju Formation

The Jinju Formation is an Early Cretaceous geologic formation in South Korea.[1] Dinosaur remains are among the fossils that have been recovered from the formation, although none have yet been referred to a specific genus.[2] It has been dated to the Albian stage.[3] It predominantly consists of black shale, interbedded with sandstone packets, deposited in a fluvial-lacustrine setting.

Jinju Formation
Stratigraphic range: Albian
112–108.7 Ma
TypeGeological formation
Unit ofShindong Group
UnderliesChilgog Formation, Iljig Formation
OverliesHasandong Formation
Thickness1,000–1,800 m (3,300–5,900 ft)
Lithology
PrimaryShale
OtherSandstone
Location
Coordinates35.1°N 128.1°E / 35.1; 128.1
Approximate paleocoordinates44.3°N 122.7°E / 44.3; 122.7
RegionNorth Gyeongsang Province
Country South Korea
ExtentGyeongsang Basin
Jinju Formation (South Korea)

A diverse spider fauna is known from the formation, including indeterminate mygalomorphs and palpimanoids as well as two species of lagonomegopid belonging to the genera Koreamegops and Jinjumegops.[4] Other compression fossils known from the formation include a species of the zhangsolvid fly Buccinatormyia and elaterid beetle Koreagrypnus.

See also

References

  1. [ Jinju Formation] in the Paleobiology Database
  2. Weishampel et al., 2004, pp.517-607
  3. Lee et al., 2018
  4. Park et al., 2019

Bibliography

  • Park, Tae-Yoon S.; Kye-Soo Nam, and Paul A. Selden. 2019. A diverse new spider (Araneae) fauna from the Jinju Formation, Cretaceous (Albian) of Korea. Journal of Systematic Palaeontology 17. 1271–1297. doi:10.1080/14772019.2018.1525441 ISSN 1477-2019
  • Lee, Tae-Ho; Kye-Hun Park, and Keewook Yi. 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, 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
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