Sanam-myeon, Sacheon-shi (KNUL collection) (Cretaceous of South Korea)

Where: South Korea (35.1° N, 128.1° E: paleocoordinates 44.3° N, 122.7° E)

• coordinate estimated from map

• outcrop-level geographic resolution

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

• Dongmyeong Formation (=Jinju Formation). 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)

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: Kyungpook National University

Primary reference: S. B. Lee, G. S. Nam, J. K. Park, B. H. Lee, and Y. D. Li. 2023. Cretaceous beetles of the Jinju Formation (Coleoptera): Archostemata. Palaeoentomology 6:496-506 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 232407: authorized by Matthew Clapham, entered by Matthew Clapham on 16.11.2023

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Insecta
 Coleoptera - Ommatidae
Omma sp., Brochocoleus sacheonensis n. sp.
Omma sp. Newman 1839 beetle
KNUL-1111-02 (NSLSS 1068)
Brochocoleus sacheonensis n. sp. Lee et al. 2023 beetle
KNUL-1111-01 (NSLSS 1033)