The Jinju Formation (Korean : 진주층 ; Hanja : 晋州層 ; RR : Jinju-cheung ) is an Early Cretaceous geologic formation in South Korea .[ 2] Dinosaur remains are among the fossils that have been recovered from the formation, although none have yet been referred to a specific genus .[ 3] The depositional age of this formation spans from approximately 112.4 ± 1.3 to 106.5 million years ago (early Albian ) based on detrital zircon U-Pb dating.[ 4] It predominantly consists of black shale, with sandstone packets, deposited in a fluvial-lacustrine setting.
A diverse arthropod fauna, including freshwater arthropods, spiders, and insects, is known from the formation. Other notable fossils known from the formation include several freshwater fishes, ostracods, and plants. This formation has also "attracted global ichnological attention" for the variety of important ichnofossils.[ 5] Columnar and rod-shaped stromatolites have also been found here.[ 6]
Jinju formation consists of a diverse order of insects: Orthoptera , Homoptera , Mantodea , Diptera , Coleoptera , Hymenoptera , Dermaptera , Neuroptera , Blattoidea , Hemiptera , Odonata , Mecoptera , etc.
Blattodeans of the Jinju Formation[ 12]
Genus
Species
Region
Member
Material
Notes
Image
Rhipidioblattina
R . sp. cf. R. radipinguis
R ?. sp. cf. R. jilinensis
R . sp. A
Mesoblattina
M . sp. A
M . sp. B
M . sp. C
M . sp. D
Samaroblatta
S . sp. cf. S. rhypha
Blattula
B . sp. cf. B. exetenuata
B . sp. A
Mesoblattula
M . sp.
Sclerotermes [ 13]
S. samsiki
Jinju
A termite known only from an isolated wing, uncertain placement
Indeterminate
A total of 13 indeterminate species
Isopods of the Jinju Formation
Genus
Species
Region
Member
Material
Notes
Image
Archaeoniscus [ 32]
A. coreaensis
A freshwater occurrence of the genus Archaeoniscus
Clam shrimps of the Jinju Formation
Genus
Species
Region
Member
Material
Notes
Image
Yanjiestheria [ 36]
Y. kyongsangensis
Y. chekiangensis
Y. cf. wannanensis
Y. jinjuensis
Y. sp.
Source:[ 37]
Reptiles of the Jinju Formation
Genus
Species
Region [ 41]
Member
Material
Notes
Image
Crocodyliformes indet.[ 42]
Goryeong
a right mandible
Titanosauriformes indet.[ 43] [ 44]
Sacheon and Goryeong
teeth
A tooth from Sacheon was initially suggested to be of Asian Brachiosaurid by Lim, Martin and Baek (2001), but Barrett et al. (2002) and Choi & Lee (2017) consider it to be indeterminate titanosauriform . Meanwhile, another tooth from Goryeong was suggested to be of Diplodocoidea by Yun et al. (2007), but Choi and Lee (2017) also considered it indeterminate titanosauriform.
Pterodactyloidea indet.[ 43] [ 45]
Goryeong
teeth
While the KPE 40001 suggested to be of Boreopterid origin by Choi & Lee (2017), Yun (2021) and Yun (2024) consider them to be Anhanguerian instead based on the morphological disparity from Boreopteridae and the results of two-dimensional geometric morphometric analyses.[ 46] [ 47]
Bivalves of the Jinju Formation[ 48]
Genus
Species
Region
Member
Material
Notes
Image
Plicatounio
P. naktongensis
Nagdongia
N. soni
The genus Nagdongia is considered to be synonymous with Nakamuranaia by some.
Trigonioides
T. jaehoi
Gastropods of the Jinju Formation[ 8]
Genus
Species
Region
Member
Material
Notes
Image
Brotiopsis
B. kobayashi
Dominant gastropod of the formation
Thiara
T . sp.
Viviparus [ 49]
V . sp.
Unnamed ichnofossils from the Jinju Formation include Ornithopod tracks and Caddisfly bioherms.[ 6]
^ Chang, Ki-Hong (1975). "Cretaceous Stratigraphy of Southeast Korea". Journal of the Geological Society of Korea . 11 (1): 1– 23.
^ Jinju Formation in the Paleobiology Database
^ Weishampel, David B. ; Barrett, Paul M.; Coria, Rodolfo A. ; Le Loueff, Jean; Xu, Xing ; Zhao, Xijin ; Sahni, Ashok; Gomani, Emily M.P.; Noto, Christopher N. (2004). "Dinosaur distribution". In Weishampel, David B. ; Dodson, Peter ; Osmólska, Halszka (eds.). The Dinosauria (Second ed.). Berkeley: University of California Press. pp. 517– 607. ISBN 978-0-520-24209-8 .
^ Chae, Yong-Un; Lim, Jong Deock; Kim, Cheong-Bin; Kim, Kyung Soo; Ha, Sujin; Lim, Hyoun Soo (2020). "Detrital zircon U-Pb ages of the uppermost Jinju Formation in the Natural Monument No. 534 'Tracksite of Pterosaurs, Birds, and Dinosaurs in Hotandong, Jinju', Korea" (PDF) . Journal of the Korean Earth Science Society . 41 (4): 367−380. doi :10.5467/JKESS.2020.41.4.367 . S2CID 225332234 .
^ a b Kim, Kyung Soo; Lockley, Martin G.; Lim, Jong Deock; Xing, Lida (2019). "Exquisitely-preserved, high-definition skin traces in diminutive theropod tracks from the Cretaceous of Korea" . Scientific Reports . 9 (1): 2039. Bibcode :2019NatSR...9.2039K . doi :10.1038/s41598-019-38633-4 . PMC 6375998 . PMID 30765802 .
^ a b Paik, I.S. (2005). "The oldest record of microbial-caddisfly bioherms from the Early Cretaceous Jinju Formation, Korea: occurrence and palaeoenvironmental implications" (PDF) . Palaeogeography, Palaeoclimatology, Palaeoecology . 218 (3−4): 301−315. Bibcode :2005PPP...218..301P . doi :10.1016/j.palaeo.2004.12.020 .
^ Kim, Jong-Heon (2009). "New occurrence of Cupressinocladus sp. from the Lower Cretaceous Jinju Formation, Shindong Group, Korea" (PDF) . Journal of the Korean Earth Society . 30 (5): 605−610. Bibcode :2012JPal...86..626P . doi :10.1666/11-131R.1 . S2CID 131617665 .
^ a b c d e f Paik, In Sung; Kim, Hyun Joo; Kim, Seongyeong; Lee, Jeong Eun; So, Yoon Hwan; Lee, Hoil (2019-10-31). "Fossil-bearing deposits in the Jinju Formation at Jinju: Occurrences, paleoenvironments and stratigraphic implications" (PDF) . Journal of the Geological Society of Korea . 55 (5): 513– 530. doi :10.14770/jgsk.2019.55.5.513 . ISSN 0435-4036 . S2CID 210608913 .
^ a b Kim, Jong-Heon; Nam, Kye-Soo; Lee, Seong-Bok; Jeon, Yeong-Seok (2016). "Fossil Plants from the Early Cretaceous Hasandong Formation of Chilgok Area, Korea" (PDF) . Journal of the Korean Earth Science Society . 37 (5): 295−308. doi :10.5467/JKESS.2016.37.5.295 .
^ Park, Tae-Yoon S.; Nam, Kye-Soo; Selden, Paul A. (2019-08-03). "A diverse new spider (Araneae) fauna from the Jinju Formation, Cretaceous (Albian) of Korea" . Journal of Systematic Palaeontology . 17 (15): 1271– 1297. Bibcode :2019JSPal..17.1271P . doi :10.1080/14772019.2018.1525441 . ISSN 1477-2019 . S2CID 92137182 .
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^ Baek, Kwang-Seok; Yang, Seung-Yeong (2004). "Cockroaches from the early Cretaceous of Korea (Blattaria: Mesoblattinidae)" . Journal of the Paleontological Society of Korea (in Korean). 20 : 71– 98 – via DBpia.
^ Jouault, Corentin; Nam, Gi-Soo (2022-07-07). "A new primitive termite from the lower cretaceous (Albian) Jinju Formation of Korea" . Historical Biology . 35 (9): 1522– 1527. doi :10.1080/08912963.2022.2098490 . ISSN 0891-2963 . S2CID 250373231 .
^ Lee, S.B.; Li, Y.-D.; Cai, C.; Engel, M.S.; Nam, G.S.; Park, J.K.; Nel, A.; Jenkins Shaw, J.; Jouault, C.; Legalov, A.; Kundrata, R. (2024). "Cretaceous beetles of the Jinju Formation (Coleoptera): An overview of the Jinju Formation, its coleopteran diversity, and past and future research". Journal of Asia-Pacific Entomology . 27 (2): 102236. Bibcode :2024JAsPE..2702236L . doi :10.1016/j.aspen.2024.102236 .
^ Nam, K.S.; Park, T.Y.; Kim, Y.H. (2013-12-31). "Preliminary research on the aquatic coleopteran, Coptoclava from the Early Cretaceous Jinju Formation" . Journal of the Geological Society of Korea . 49 (6): 617– 624. doi :10.14770/jgsk.2013.49.6.617 .
^ a b Sohn, Jae-Cheon; Nam, Gi Soo; Choi, Sei-Woong; Ren, Dong (2019-12-11). Robillard, Tony (ed.). "New fossils of Elateridae (Insecta, Coleoptera) from Early Cretaceous Jinju Formation (South Korea) with their implications to evolutionary diversity of extinct Protagrypninae" . PLOS ONE . 14 (12): e0225502. Bibcode :2019PLoSO..1425502S . doi :10.1371/journal.pone.0225502 . ISSN 1932-6203 . PMC 6905514 . PMID 31826006 .
^ Sohn, Jae-Cheon; Nam, Gi Soo (2021). "New fossil genus and species of carrion beetle (Coleoptera, Silphidae) from the Lower Cretaceous Jinju Formation, South Korea" . Journal of Asia-Pacific Entomology . 24 (3): 584– 587. Bibcode :2021JAsPE..24..584S . doi :10.1016/j.aspen.2021.05.003 . S2CID 236585083 .
^ Lee, Soo Bin; Nam, Gi Soo; Li, Yan-Da (2022). "A new species of Notocupes (Coleoptera: Archostemata) from the Lower Cretaceous (Albian) Jinju Formation in South Korea". Cretaceous Research . 140 : 105357. Bibcode :2022CrRes.14005357L . doi :10.1016/j.cretres.2022.105357 . S2CID 252147645 .
^ a b c d Lee, S.B.; Nam, G.S.; Park, J.K.; Lee, B.H.; Li, Y.-D. (2023). "Cretaceous beetles of the Jinju Formation (Coleoptera): Archostemata" . Palaeoentomology . 6 (5): 496– 506. doi :10.11646/PALAEOENTOMOLOGY.6.5.8 . S2CID 264597717 .
^ a b Lee, Soo-Bin; Cai, Chen-Yang; Engel, Michael S.; Nam, Gi-Soo; Park, Jong-Kyun (29 June 2024). "Cretaceous beetles of the Jinju Formation (Coleoptera: Hydrophiloidea)". Palaeoentomology . 7 (3): 443– 452. doi :10.11646/PALAEOENTOMOLOGY.7.3.14 .
^ Engel, Michael A.; Lim, Jong-Deock; Baek, Kwang-Seok; Martin, Larry D. (2002). "An Earwig from the Lower Cretaceous of Korea (Dermaptera: Forficulina)". Journal of the Kansas Entomological Society . 75 (2): 86– 90. JSTOR 25086049 .
^ Khramov, Alexander V.; Nam, Gi-Soo; Vasilenko, Dmitry V. (2020-01-02). "First long-proboscid flies (Diptera: Zhangsolvidae) from the Lower Cretaceous of South Korea" . Alcheringa: An Australasian Journal of Palaeontology . 44 (1): 160– 168. Bibcode :2020Alch...44..160K . doi :10.1080/03115518.2019.1664634 . ISSN 0311-5518 . S2CID 213651448 .
^ Sohn, J.-C.; Nam, G. S. (2024). "New fossil genus and species of Yuripopovinidae (Insecta: Heteroptera, Coreoidea) from the Lower Cretaceous Jinju Formation, South Korea, with insights into the evolution of exaggerated antennae in the family". Cretaceous Research . 158 . 105847. Bibcode :2024CrRes.15805847S . doi :10.1016/j.cretres.2024.105847 .
^ Rosse-Guillevic, Simon; Rasnitsyn, Alexandr P.; Nam, Gi-Soo; Jouault, Corentin (April 2023). "The first Heloridae (Hymenoptera: Proctotrupoidea) from the Albian of the Republic of Korea: inferences about the relict diversity of the family" . Cretaceous Research . 151 : 105564. Bibcode :2023CrRes.15105564R . doi :10.1016/j.cretres.2023.105564 . S2CID 258269517 .
^ Rosse-Guillevic, Simon; Kopylov, Dmitry S.; Rasnitsyn, Alexander P.; Nam, Gi-Soo; Kwon, Seung-Hyuk; Jouault, Corentin (August 2023). "Blurring the limits of anaxyelid subfamilies: a new genus and species (Hymenoptera: Anaxyelidae) from the Albian of the Republic of Korea" . Palaeoentomology . 6 (4): 424– 434. doi :10.11646/palaeoentomology.6.4.13 . S2CID 261307640 .
^ Jouault, Corentin; Kwon, Seung-Hyuk; Nam, Gi-Soo (2024). "A new species of Cretosphecium (Hymenoptera: Angarosphecidae) from the lower Albian Jinju Formation of South Korea" . Alcheringa: An Australasian Journal of Palaeontology . 0 (0): 1– 7. doi :10.1080/03115518.2024.2425623 . ISSN 0311-5518 .
^ Nam, Kye-Soo; Kim, Jong-Heon (2016). "Reconstruction and Paleoecological implications of Dragonfly Hemeroscopus baissicus Pritykina 1977 (Hemeroscopidae) from the Lower Cretaceous Jinju Formation in the Jinju area, Korea" . Journal of the Geological Society of Korea . 52 (2): 102– 112. doi :10.14770/jgsk.2016.52.2.105 .
^ Kim, Do-Yoon; Lee, Mirinae; Nam, Gi-Soo; Park, Tae-Yoon S. (2021). "The first orthopteran fossils from the Lower Cretaceous (Albian) Jinju Formation of Korea: Ethological implications for elcanids" . Cretaceous Research . 125 : 104843. Bibcode :2021CrRes.12504843K . doi :10.1016/j.cretres.2021.104843 .
^ Engel, Michael S; Lim J.-D.; Baek, K.-S. (2006-04-25). "Fossil snakeflies from the Early Cretaceous of southern Korea (Raphidioptera: Mesoraphidiidae)" . Neues Jahrbuch für Geologie und Paläontologie - Monatshefte . 2006 (4): 249– 256. doi :10.1127/njgpm/2006/2006/249 . ISSN 0028-3630 .
^ Khramov, A.V.; Nam, G.S. (2020). "The First Record of Lacewings (Insecta: Neuroptera: Mesochrysopidae) from the Lower Cretaceous of South Korea". Paleontological Journal . 54 (6): 613– 616. Bibcode :2020PalJ...54..613K . doi :10.1134/S003103012005007X . S2CID 227133826 .
^ a b Khramov, Alexander V.; Nam, Gi-Soo (October 2024). "Discovery of supposedly "Gondwanan" myrmeleontoids (Neuroptera) in the Lower Cretaceous of South Korea". Cretaceous Research : 106024. doi :10.1016/j.cretres.2024.106024 .
^ Park, Tae-Yoon; Wilson, George D. F.; Lee, Dong-Chan; Choi, Duck K. (2012). "Occurrence of the Isopod Archaeoniscus coreaensis New Species from the Lower Cretaceous Jinju Formation, Korea" . Journal of Paleontology . 86 (4): 626– 640. Bibcode :2012JPal...86..626P . doi :10.1666/11-131R.1 . JSTOR 23253719 . S2CID 131617665 .
^ Choi, Byung-Do; Jia, Baoyan; Huh, Min; Jung, Jongyun; Wang, Yaqiong (2021-11-01). "Taxonomy, biostratigraphic and paleoecological aspects of non-marine ostracod fauna from the Jinju Formation (Albian) of the Gyeongsang Basin, South Korea" . Cretaceous Research . 127 : 104944. Bibcode :2021CrRes.12704944C . doi :10.1016/j.cretres.2021.104944 . ISSN 0195-6671 .
^ Choi, Byung-Do; Wang, Ya-Qiong; Huh, Min (2018-09-01). "Cypridea species (Crustacea, Ostracoda) from the Lower Cretaceous Jinju Formation of the Gyeongsang Basin, South Korea" . Palaeoworld . 27 (3): 382– 391. doi :10.1016/j.palwor.2018.03.005 . ISSN 1871-174X . S2CID 135191249 .
^ Choi, Byung-Do; Huh, Min (2016-01-01). "Mongolocypris kohi sp. nov.: A new Early Cretaceous non-marine ostracod species from the Jinju Formation, South Korea" . Cretaceous Research . 57 : 239– 247. Bibcode :2016CrRes..57..239C . doi :10.1016/j.cretres.2015.09.008 . ISSN 0195-6671 .
^ Park, Sun-Ok; Chang, Ki-Hong (1998). "Some Cretaceous conchostracans of Kyongsang basin". Journal of the Paleontological Society of Korea . 14 (2): 179– 199.
^ Choi, Seung; Lee, Yuong-Nam (2017). "A review of vertebrate body fossils from the Korean Peninsula and perspectives" . Geosciences Journal . 21 (6): 867– 889. Bibcode :2017GescJ..21..867C . doi :10.1007/s12303-017-0040-6 . ISSN 1226-4806 . S2CID 133835817 .
^ Yabumoto, Y.; Yang, S.Y.; Kim, T.W. (2006). "Early Cretaceous freshwater fishes from Japan and Korea" (PDF) . Journal of the Paleontological Society of Korea . 22 (1): 119– 132. S2CID 53309909 .
^ Yabumoto, Yoshitaka; Yang, Seong-Young (2000). "The first record of the Early Cretaceous freshwater fish, Wakinoichthys aokii , from Korea" . Bulletin of the Kitakyushu Museum of Natural History . 19 : 105– 110.
^ Kim, Haang-Mook; Chang, Mee-Mann; Wu, Feixiang; Kim, Yang-Hee (2014). "A new ichthyodectiform (Pisces, Teleostei) from the Lower Cretaceous of South Korea and its paleobiogeographic implication" . Cretaceous Research . 47 : 117– 130. Bibcode :2014CrRes..47..117K . doi :10.1016/j.cretres.2013.11.007 .
^ a b c d 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 .
^ Yun, Cheol-Soo; Lim, Jong-Deock; Yang, Seong-Young (May 10, 2004). "The first crocodyliform (Archosauria: Crocodylomorpha) from the Early Cretaceous of Korea" (PDF) . Current Science . 86 (9): 1200– 1201.
^ a b Yun, Cheol-Soo; Baek, Kwang-Seok; Jeong, Young-Hyeon (2007). "Cretaceous reptilian teeth from the Gyeongsang Basin". Journal of the Paleontological Society of Korea . 23 (1): 27– 47.
^ Lim, J.-D.; Martin, L.D.; Baek, K.-S. (2001-02-01). "The first discovery of a brachiosaurid from the Asian continent" . Naturwissenschaften . 88 (2): 82– 84. Bibcode :2001NW.....88...82L . doi :10.1007/s001140000201 . ISSN 1432-1904 . PMID 11320893 . S2CID 39381123 .
^ Yun, Cheol-Soo; Yang, Seong-Young (2001). "First discovery of big pterosaur teeth in Korea". Journal of the Paleontological Society of Korea . 17 (2): 69– 76.
^ Yun, Chan-Gyu (2021). "Boreopterid pterosaur fossils from South Korea reconsidered". New Mexico Museum of Natural History and Science Bulletin . 82 : 567– 568.
^ Yun, Chan-Gyu (2024). "Geometric morphometric approach to establish phylogenetic affinities of enigmatic pterosaur specimens from the Lower Cretaceous of South Korea" . Acta Palaeontologica Romaniae . 20 (1): 77– 86. doi :10.35463/j.apr.2024.01.06 .
^ Yun, Cheol-Soo; Yang, Seung-Yeong (2004). "Three bivalve fossils from the Dongmyeong Formation of Gisan, Goryeong in Korea" . Journal of the Paleontological Society of Korea . 20 (2): 173– 181 – via DBpia.
^ a b Kim, Kyung Soo; Kim, Jeong Yul (2008). "Lockeia gigantus ichnosp. nov. in the Lacustrine Deposits of the Early Cretaceous Jinju Formation, Southern Coast of Korea" (PDF) . Journal of the Korean Earth Society . 29 (1): 13– 28. doi :10.5467/JKESS.2008.29.1.013 . ISSN 1225-6692 .
^ Xing, Lida; Díaz-Martínez, Ignacio; Lallensack, Jens N.; Kim, Kyung Soo; Buckley, Lisa G.; Romilio, Anthony; Piñuela, Laura; Wang, Donghao; Chen, Qiyan; Yang, Qing; Chou, Chunyong; Yin, Hang; Jin, Yufei (2025). "Cretaceous vertebrate tracks". Vertebrate Ichnology : 479– 747. doi :10.1016/B978-0-443-13837-9.00002-0 .
^ a b c Kim, Kyung Soo; Lim, Jong Deock; Lockley, Martin G.; Xing, Lida; Ha, Su Jin; Kim, Cheong Bin; Paik, In Sung; Ahn, Jae Hong; Mun, Seok Chan (2018). "First reports of a distinctive theropod track assemblage from the Jinju Formation (Lower Cretaceous) of Korea provides strong correlations with China" . Cretaceous Research . 81 : 26– 35. Bibcode :2018CrRes..81...26K . doi :10.1016/j.cretres.2017.08.005 .
^ Kim, Kyung Soo; Lim, Jong Deock; Lockley, Martin G.; Xing, Lida; Kim, Dong Hee; Piñuela, Laura; Romilio, Anthony; Yoo, Jae Sang; Kim, Jin Ho; Ahn, Jaehong (2018-11-15). "Smallest known raptor tracks suggest microraptorine activity in lakeshore setting" . Scientific Reports . 8 (1): 16908. Bibcode :2018NatSR...816908K . doi :10.1038/s41598-018-35289-4 . ISSN 2045-2322 . PMC 6237872 . PMID 30442900 .
^
^ Kim, Jeong Yul; Lockley, Martin G.; Woo, Jeong Ok; Kim, Sam Hyang (2012). "Unusual didactyl traces from the Jinju Formation (Early Cretaceous, South Korea) indicate a new ichnospecies of Dromaeosauripus ". Ichnos: An International Journal for Plant and Animal Traces . 19 (1– 2): 75– 83. Bibcode :2012Ichno..19...75K . doi :10.1080/10420940.2012.664054 . S2CID 129875076 .
^ a b Kang, Seung Hyeop; Buckley, Lisa G.; McCrea, Richard T.; Kim, Kyung-Soo; Lockley, Martin G.; Lim, Jong Deock; Lim, Hyun Soo; Kim, Cheong-Bin (2021). "First report of bird tracks (Ignotornis seoungjoseoi ichnosp. nov.) from the Jinju Formation (Lower Cretaceous), Sacheon City, Korea". Cretaceous Research . 127 (11): 104899. Bibcode :2021CrRes.12704899K . doi :10.1016/j.cretres.2021.104899 .
^ Kim, Kyung Soo; Lim, Jong Deock; Lockley, Martin G.; Xing, Lida; Choi, Yeongi (2017). "Korean trackway of a hopping, mammaliform trackmaker is first from the Cretaceous of Asia" . Cretaceous Research . 74 : 188– 191. Bibcode :2017CrRes..74..188K . doi :10.1016/j.cretres.2017.02.005 .
^ Kim, Kyung Soo; Lim, Jong Deock; Lockley, Martin G.; Kim, Dong Hee; Pinuela, Laura; Yoo, Jae Sang (2019). "Largest Cretaceous lizard track assemblage, new morphotypes and longest trackways comprise diverse components of an exceptional Korean Konservat-Lagerstätten ichnofauna" . Scientific Reports . 9 (1): 13278. Bibcode :2019NatSR...913278K . doi :10.1038/s41598-019-49442-0 . PMC 6746761 . PMID 31527673 .
^ a b Kim, Kyung Soo; Lockley, Martin G.; Lim, Jong Deock; Kim, Dong Hee (2019). "The oldest known anuran (frog) trackways from the Jinju Formation, Lower Cretaceous, Korea" . Cretaceous Research . 96 : 142– 148. Bibcode :2019CrRes..96..142K . doi :10.1016/j.cretres.2018.12.008 . S2CID 134521999 .
^ Kim, J.-Y.; Lockley, M. (2016). "First report of turtle tracks from the Lower Cretaceous of Korea". Cretaceous Research . 64 : 1– 6. Bibcode :2016CrRes..64....1K . doi :10.1016/j.cretres.2016.03.014 .
^ Lockley, Martin G.; Lim, Jong Deock; Park, Hong Deock; Romilio, Anthony; Yoo, Jae Sang; Choi, Ji Won; Kim, Kyung Soo; Choi, Yeongi; Kang, Seung-Hyeop; Kim, Dong Hee; Kim, Tae Hyeong (2020-07-01). "First reports of Crocodylopodus from East Asia: implications for the paleoecology of the Lower Cretaceous" . Cretaceous Research . 111 : 104441. Bibcode :2020CrRes.11104441L . doi :10.1016/j.cretres.2020.104441 . ISSN 0195-6671 . S2CID 216164973 .
^ a b Kim, Kyung Soo; Lockley, Martin G.; Lim, Jong Deock; Bae, Seul Mi; Romilio, Anthony (2020-06-11). "Trackway evidence for large bipedal crocodylomorphs from the Cretaceous of Korea" . Scientific Reports . 10 (1): 8680. Bibcode :2020NatSR..10.8680K . doi :10.1038/s41598-020-66008-7 . ISSN 2045-2322 . PMC 7289791 . PMID 32528068 .
^ Sennikov, Andrey Gerasimovich (December 2021). "The Plantigrade Segnosaurians: Sloth Dinosaurs or Bear Dinosaurs?". Paleontological Journal . 55 (10): 1158– 1185. doi :10.1134/S0031030121100087 .
^ Kirkland, James I. [@Paleojim] (Jun 24, 2022). "I am shocked at the degree of lumping needed to assign this ichnotaxon to Batrachopus ... Over splitting is certainly a problem with tracks, but this goes a bit too far in the other direction. Otherwise a very interesting and important paper. Bipedal crocs" (Tweet ) – via Twitter .
^ Ha, Sujin; Kim, Kyung Soo; Lim, Hyoun Soo; Lockley, Martin G.; Yoo, Jae Sang; Lim, Jong Deock (2022-03-01). "Diminutive pterosaur tracks and trackways (Pteraichnus gracilis ichnosp. nov.) from the Lower Cretaceous Jinju Formation, Gyeongsang Basin, Korea" . Cretaceous Research . 131 : 105080. Bibcode :2022CrRes.13105080H . doi :10.1016/j.cretres.2021.105080 . ISSN 0195-6671 . S2CID 240322960 .
^ Ha, Sujin; Chae, Yong-Un; Lim, Jong Deock; Kim, Cheong-Bin; Lim, Hyoun Soo; Kim, Kyung Soo (2018-10-30). "Cretaceous Pterosaur Tracks in Daegok-ri, Ulju-gun, Ulsan: Spatio-temporal Distribution of Pterosaur in the Korean Peninsula" . Journal of the Korean Earth Science Society . 39 (5): 458– 472. doi :10.5467/JKESS.2018.39.5.458 . ISSN 1225-6692 . S2CID 133982306 .
^ Lee, Dong-Chan (2017). "Radialimbricatus , a new ichnogenus from the lacustrine sandstone facies of the Lower Cretaceous Jinju Formation, South Korea". Alcheringa: An Australasian Journal of Palaeontology . 41 (3): 350– 364. Bibcode :2017Alch...41..350L . doi :10.1080/03115518.2017.1283053 . S2CID 132462007 .
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