The Uhangri Formation (Korean: 우항리층; Hanja: 牛項里層; RR: Uhangli-cheung), 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.[2]
| Uhangri Formation | |
|---|---|
| Stratigraphic range: Campanian [1] | |
| Type | Geological formation |
| Unit of | Haenam Group |
| Lithology | |
| Primary | Sandstone |
| Other | Shale |
| Location | |
| Coordinates | 34°36′N 126°24′E / 34.6°N 126.4°E |
| Approximate paleocoordinates | 38°30′N 115°00′E / 38.5°N 115.0°E |
| Region | Cholla-namdo, Jeollanam-do |
| Country |  South Korea |
  Uhangri Formation (South Korea) | |
Uhangri Dinosaur Fossil Site edit
| Uhangri Formation | |
| Hangul | 우항리공룡화석자연사유적지 |
|---|---|
| Hanja | |
| 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).[3]
Fossil contents edit
Pterosaur tracks edit
Pterosaur tracks 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.[4]
| Pterosaur tracks of the Uhangri Formation[4] | ||||
|---|---|---|---|---|
| Taxa | Presence | Description | Images | |
| Haenamichnus uhangriensis | Haenamichnus type locality | |||
| Pteraichnus | Haenamichnus type locality | |||
Dinosaur tracks edit
| Dinosaur tracks of the Uhangri Formation[5] | ||||
|---|---|---|---|---|
| Taxa | Presence | Description | Images | |
| Hwangsanipes choughi | Haenam | Ornithuromorph bird tracks | ||
| Uhangrichnus chuni | Haenam | Ornithuromorph bird tracks | ||
| Caririchnium | Haenam | Ornithopod tracks | ||
Arthropod tracks edit
| Arthropod tracks of the Uhangri Formation[6] | ||||
|---|---|---|---|---|
| Taxa | Presence | Description | Images | |
| Lithographus hieroglypichus | Possibly made by Pterygota | |||
Paleoflora edit
| Plants of the Uhangri Formation[5] | ||||
|---|---|---|---|---|
| Taxa | Presence | Description | Images | |
| Cupressinoxylon uhangriense | ||||
| Taxodioxylon cf. nihongii | ||||
See also edit
References edit
- ^ Kim, C.B.; Kim, J.M.; Huh, M. "Age and stratification of dinosaur eggs and clutches from Seonso Formation, South Korea" (PDF). Journal of the Korean Earth Science Society. 29 (5): 386–395. doi:10.5467/JKESS.2008.29.5.386.
- ^ Uhangri Formation at Fossilworks.org
- ^ "visitkorea". Retrieved 2013-03-19.
- ^ a b Lockley et al., 2008
- ^ a b Kim, Jeong Yul; Huh, Min (2018). Dinosaurs, Birds, and Pterosaurs of Korea: A Paradise of Mesozoic Vertebrates (PDF). Springer Nature. ISBN 978-981-10-6998-7.
- ^ Minter, Nicholas J.; Lockley, Martin G.; Huh, Min; Hwang, Koo-Geun; Kim, Jeong Yul (2012). "Lithographus, an Abundant Arthropod Trackway from the Cretaceous Haenam Tracksite of Korea". Ichnos. 19 (1–2): 115–120. doi:10.1080/10420940.2011.625756. S2CID 129177512.
Bibliography edit
- Lockley, M.; Harris, J.D.; and Mitchell, L. 2008. "A global overview of pterosaur ichnology: tracksite distribution in space and time." Zitteliana. B28. p. 187-198. ISSN 1612-4138
- K.-G. Hwang, M. Huh, M. G. Lockley, D. M. Unwin, and J. L. Wright. 2002. New pterosaur tracks (Pteraichnidae) from the Late Cretaceous Uhangri Formation, southwestern Korea. Geological Magazine 139:421-435
- Y.-N. Lee and M. Huh. 2002. Manus-only sauropod tracks in the Uhangri Formation (Upper Cretaceous), Korea and their paleobiological implications. Journal of Paleontology 76(3):558-564
- Y.-N. Lee, K.-M. Yu, and C. B. Wood. 2001. A review of vertebrate faunas from the Gyeongsang Supergroup (Cretaceous) in South Korea. Palaeogeography, Palaeoclimatology, Palaeoecology 165:357-373
- S.-Y. Yang, M.G. Lockley, R. Greben, B.R. Erickson, and S.-K. Lim. 1995. Flamingo and duck-like bird tracks from the Late Cretaceous and Early Tertiary: evidence and implications. Ichnos 4:21-34