Uhangri Formation

Last updated
Uhangri Formation
Stratigraphic range: Santonian-Campanian
~85  Ma
Type Geological formation
Unit of Haenam Group
Primary Sandstone
Other Shale
Coordinates 34°36′N126°24′E / 34.6°N 126.4°E / 34.6; 126.4 Coordinates: 34°36′N126°24′E / 34.6°N 126.4°E / 34.6; 126.4
Approximate paleocoordinates 38°30′N115°00′E / 38.5°N 115.0°E / 38.5; 115.0
Region Cholla-namdo, Jeollanam-do
CountryFlag of South Korea.svg  South Korea
South Korea physical map.svg
Lightgreen pog.svg
Uhangri Formation (South Korea)

The Uhangri Formation, located at the Uhangri Dinosaur Fossil Site, is a geological formation from which fossil pterosaur tracks have been recovered near Haenam-eup, Jeollanam-do, South Korea. [1]


Uhangri Dinosaur Fossil Site

Uhangri Formation
Revised Romanization Uhangni gongnyong hwaseok jayeonsa yujeokji
McCune–Reischauer Uhangni kongnyong hwasŏk chayŏnsa yujŏkchi

The Uhangri Dinosaur Fossil Site area was originally covered by ocean, uncovered when Lake Damsuho, and surrounding area, was created by the construction of the Geumho Tide project.

Lake Damsuho has cliffs that are 3 to 4 metres (9.8 to 13.1 ft) high, stretching across about 5 kilometres (3.1 mi), made up of sedimentary rock formed during the Cretaceous age. Embedded in the rock formations around the lake are fossilized footprints of dinosaurs, pterosaurs and water birds that lived in this area tens of millions of years ago.

No other place in the world has fossil footprints of all these different dinosaurs found in a single area. The footprints of a pterosaur discovered in this area is the largest in the world at a length of 20 to 35 centimetres (7.9 to 13.8 in). [2]

Vertebrate paleofauna


Pterosaur remains from the Uhangri Formation are housed at the Dinosaur Tracks Museum, of the University of Colorado at Denver and Chonnam National University, Gwangju, South Korea. [3]

Pterosaurs of the Uhangri Formation
Haenamichnus [3] Haenamichnus type locality [3]
Pteraichnus Haenamichnus type locality [3]

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  1. Uhangri Formation at Fossilworks.org
  2. "visitkorea" . Retrieved 2013-03-19.
  3. 1 2 3 4 Lockley et al., 2008