The Jindong Formation () is a geological formation located in South Korea. It is dated to the Cenomanian-Turonian stages of the Late Cretaceous, between 99.9 ± 0.7 Ma and 93.1 ± 0.3 Ma.
Geological background The Jindong Formation consists of thick, fine-grained, altered volcaniclastic sediments. Most of these sediments are ash-rich mudstone, siltstone, and very fine sandstone. There are also coarser sandstone, conglomerate, carbonates, and tuff.
Paleontology The Jindong Formation has yielded numerous of dinosaurs and bird tracks. Ichnofossils including unnamed tracks of sauropods and pterosaurs, the isolated sauropod skin impression not associated with trackways, and the poorly preserved juvenile sauropod trackway with no ichnotaxon assignment have been reported.
+Ichnofossils of the Jindong FormationIchnogenusIchnospeciesRegionMemberMaterialNotesImageBrontopodusB. isp.Sauropod tracksCaririchniumC. isp.Ornithopod tracksGoseongornipesG. markjonesiBird tracksGyeongsangornipesG. lockleyiBird tracksHadrosauropodusH. kyoungsookimiThe first trackway of a quadrupedal ornithopod discovered in Korea, originally attributed to the ichnogenus Caririchnium.JindongornipesJ. kimiBird tracksKoreanaornisK. hamanensisBird tracksOrnithopodichnusO. masanensisCurrently regarded as dubious ichnotaxon made by ornithopod trackmakers.cf. Ruopodosauruscf. R. isp.Ankylosaur trackway, possibly made by (sub)adult Ankylosaurid trackmakerUndichnaU. simplicatis U. bina U. britannicaFish swim traces
See also List of fossil sites
References