ammonites
Dukmyeongri Tracks, site 5 (Cretaceous of South Korea)

Where: Kyungsangnamdo, South Korea (34.9° N, 128.1° E: paleocoordinates 44.4° N, 122.5° E)

• coordinate based on political unit

• outcrop-level geographic resolution

When: Jindong Formation (Hayang Group), Albian (112.0 - 99.6 Ma)

• Tracks found in over 203 distinct horizons in a 150 m thick measured section of the formation at the Dukmyeongri site.

• group of beds-level stratigraphic resolution

Environment/lithology: lacustrine; burrowed, bioturbated, stromatolitic carbonate

• "The Formation consists predominantly of dark gray calcareous mudstones, siltstones, and fine sandstones."
• Thinly laminated carbonate units typically ranging from 5-15 cm in thickness. Weathered surfaces reveal that many of these are stromatolitic in character. Mudcracks and symmetrical wave ripples occur through the sequence, with a small portion of asymmetrical and irregular ripples. Small vertical structures usually with irregular fillings probably indicate roots, or possibly Skolithus-like burrows.

Size class: macrofossils

Preservation: cast, mold/impression, trace

Primary reference: S. K. Lim, S. Y. Yang, and M. G. Lockley. 1989. Large dinosaur footprint assemblages from the Cretaceous Jindong Formation of southern Korea. In D. D. Gillette and M. G. Lockley (eds.), Dinosaur Tracks and Traces. Cambridge University Press, Cambridge 333-336 [M. Carrano/K. Maguire/M. Carrano] more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 52707: authorized by Matt Carrano, entered by Kaitlin Maguire on 17.08.2005