Jeongchon Mountain, Jeongchon City, Jinju (Cretaceous of South Korea)

Where: South Korea (35.1° N, 128.1° E: paleocoordinates 44.4° N, 122.7° E)

• coordinate stated in text

• outcrop-level geographic resolution

When: Jinju Formation (Shindong Group), Albian (113.0 - 100.5 Ma)

• Formerly given a wide age range (often Barremian), but youngest detrital zircon in Jinju Formation is 106 Ma, indicating an age no older than Albian (Lee et al., 2010)

• group of beds-level stratigraphic resolution

Environment/lithology: lacustrine - large; lithified, fine-grained, gray shale

• Initiated by north–south left-lateral regional simple shear as a wrench tectonic system due to highly oblique subduction of the Izanagi Plate (Lee et al., 2010)

Size class: macrofossils

Preservation: adpression

Collection methods: Repository: Korean Polar Research Institute; Daejeon Science High School; Gongju National University of Education

Primary reference: T. Y. Park, Y. H. Kim, and K. S. Nam. 2013. Preliminary research on the aquatic coleopteran, Coptoclava from the Early Cretaceous Jinju Formation. Journal of the Geological Society of Korea 49:617-624 [M. Clapham/M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 184781: authorized by Matthew Clapham, entered by Matthew Clapham on 22.03.2017

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Arachnida
 Araneae - Lagonomegopidae
Koreamegops samsiki n. gen. n. sp.5, Jinjumegops dalingwateri n. gen. n. sp.5
Koreamegops samsiki n. gen. n. sp.5 Park et al. 2019 spider
KOPRIF7011, 7012
Jinjumegops dalingwateri n. gen. n. sp.5 Park et al. 2019 spider
KOPRIF7014
 Araneae -
Entelegynae "indet. 1"5, Entelegynae "indet. 2"5
Entelegynae "indet. 1"5 Simon 1893 spider
KOPRIF7016
Entelegynae "indet. 2"5 Simon 1893 spider
KOPRIF7013, 7015
Insecta
 Odonata - Hemeroscopidae
Hemeroscopus baissicus4
Hemeroscopus baissicus4 Pritykina 1977 true dragonfly
DSHS-OD-2011001, 2011046, 2011097
 Hemiptera - Yuripopovinidae
Jinjupopovina eosahwae n. gen. n. sp.8
Jinjupopovina eosahwae n. gen. n. sp.8 Sohn and Nam 2024 true bug
GNUE-I-2013004
 Orthoptera - Elcanidae
Panorpidium spica n. sp.2
Panorpidium spica n. sp.2 Kim et al. 2021 grasshopper
GNUE212001, 212002, 212003
 Blattodea -
Sclerotermes samsiki n. gen. n. sp.1
Sclerotermes samsiki n. gen. n. sp.1 Jouault and Nam 2022 termite
GNUE218001
 Hymenoptera - Heloridae
Korehelorus jinjuensis n. gen. n. sp.6
Korehelorus jinjuensis n. gen. n. sp.6 Rosse-Guillevic et al. 2023 wasp
GNUE218014
 Coleoptera - Coptoclavidae
Coptoclava sp.
Coptoclava sp. Ping 1928 beetle
KOPRIF7001, 702, 7003, 7004, 7005, 7006
 Coleoptera - Staphylinidae
Cretosaja jinjuensis n. gen. n. sp.7
Cretosaja jinjuensis n. gen. n. sp.7 Sohn and Nam 2021 rove beetle
GNUE-I-2013003
 Coleoptera - Elateridae
Koreagrypnus jinju n. gen. n. sp.9, Megalithomerus magohalmii n. gen. n. sp.9
Koreagrypnus jinju n. gen. n. sp.9 Sohn and Nam 2019 click beetle
GNUE-I-2013002
Megalithomerus magohalmii n. gen. n. sp.9 Sohn and Nam 2019 click beetle
GNUE-I-2013001
 Coleoptera -
Zygadenia cornigera n. sp.3
Zygadenia cornigera n. sp.3 Lee et al. 2023 beetle
GNUE-217011
 Coleoptera - Ommatidae
Asiania pax n. gen. n. sp.3, Brochocoleus cf. punctatus3
Asiania pax n. gen. n. sp.3 Lee et al. 2023 beetle
GNUE-217012
Brochocoleus cf. punctatus3 Hong 1982 beetle
GNUE-217013
1Jouault and Nam 2022; 2Kim et al. 2021; 3Lee et al. 2023; 4Nam and Kim 2016; 5Park et al. 2019; 6Rosse-Guillevic et al. 2023; 7Sohn and Nam 2021; 8Sohn and Nam 2024; 9Sohn et al. 2019