Nakdong Formation

The Nakdong Formation (Also known as the Nagdong Formation) (Korean: 낙동층; Hanja: 洛東層; RR: Nakdong-cheung) is an Early Cretaceous (Hauterivian to Aptian) geologic formation in South Korea. It has been dated from the Hauteravian to the Aptian, between 127 Ma and 118.0 ± 2.6 Ma. Plant fossils from the Nakdong Formation show 'mixed type' of the Tetori-Type and the Ryoseki-Type flora existed in this formation. Sauropod fossils have been reported from the formation,^[3] although none have yet been referred to a specific genus.

Nakdong Formation
Stratigraphic range: Hauterivian-Aptian ~127–118 Ma PreꞒ Ꞓ O S D C P T J K Pg N [1]
Type	Geological formation
Unit of	Shindong Group
Underlies	Hasandong Formation
Overlies	Unconformity
Thickness	~2,100 meters
Lithology
Primary	Conglomerate, Shale, sandstone
Location
Coordinates	35.6°N 128.2°E / 35.6; 128.2
Approximate paleocoordinates	41.1°N 133.8°E / 41.1; 133.8
Region	Gyeongsang Province
Country	South Korea
Type section
Named for	Nakdong, Sangju
Named by	Tateiwa, 1929[2]
Nakdong Formation (South Korea)

See also

• Earth sciences portal
• Paleontology portal
• Dinosaurs portal

• List of dinosaur-bearing rock formations
  • List of stratigraphic units with indeterminate dinosaur fossils