Also known as Maggol, Makgol, Sangdong; Taebaeksan Basin

Where: Kangwon-do, South Korea (37.2° N, 128.7° E: paleocoordinates 5.8° S, 132.4° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Jigunsan Formation (Taebaek Group), Llanvirn (468.0 - 458.4 Ma)

• Upper Abereiddian (Darwillian) (Kobayashi)

•The Jigunsan Formation (formerly spelled Chikunsan or Chigunsan Formation) is a subunit of the Taebaek Group and is Llanvirnian in age (see Kwon, 2005, Geosci. J. 9(4)). No particular horizons are given for the specimens listed (TL).

•Formation was originally entered as >> Chikunsan << . Since this is the old spelling it was corrected (see, e.g., Kwon, 2005) and name of the group was added (TL).

•Chronostratygraphy was originally entered as >> Early/Lower Llandeilo << and was changed to >> Llanvirn << according to more recent publications (e.g., Yu, 1999; Kwon, 2005) which give the Llanvirnian age based on Conodont data.

• member-level stratigraphic resolution

Environment/lithology: marine; shale and limestone

Size class: macrofossils

Collection methods: UMUT = University Museum of the University of Tokyo (TL)

•Box for "survey of museums collection" was additionally checked (refers to the more recent papers). (TL)

Primary reference: T. Kobayashi. 1934. The Cambro-Ordovician formations and faunas of south Chosen. Paleontology. Part I. Middle Ordovician faunas. Journal of the Faculty of Science, the Imperial University of Tokyo, Section 2 3(8):335-519 [P. Wagner/P. Wagner]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 56171: authorized by Pete Wagner, entered by Pete Wagner on 14.11.2005, edited by Torsten Liebrecht and Bethany Allen

Creative Commons license: CC BY (attribution)