Also known as Odungol locality

Where: North Korea (37.3° N, 128.4° E: paleocoordinates 6.6° N, 149.5° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Machari Formation (Yongwol Group), St Davids (509.0 - 497.0 Ma)

• Stratigraphic interval is designated the Lejopyge armata Zone , which is correlated well with upper Middle Cambrian biozones established elsewhere. Falls betweenthe Tonkinella (middle Middle Cambrian) and Glyptoagnostus stolidotus (uppermost Middle Cambrian) zones in the Machari Formation.

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lime mudstone

Size class: macrofossils

Preservation: recrystallized, replaced with phosphate

Collection methods: bulk, chemical, acetic,

• More than 400 specimens of trilobites were recovered from the residue by dissolving about 20 kg of limestone samples in 10 percent acetic acid for approximately one week.

Primary reference: P.S. Hong, J. G. Lee, and D.K. Choi. 2003. Trilobites from the Lejopyge armata zone (Upper Middle Cambrian) of the Machari Formation, Yongwol Group, Korea. Journal of Paleontology 77(5):895-907 [A. Miller/A. Hendy/A. Hendy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 49082: authorized by Austin Hendy, entered by Austin Hendy on 07.04.2005

Creative Commons license: CC BY (attribution)