Guangoumen tracksite (Cretaceous to of China)

Also known as Zhongpu

Where: Gansu, China (35.8° N, 103.8° E: paleocoordinates 34.8° N, 103.6° E)

• coordinate stated in text

• outcrop-level geographic resolution

When: Upper Formation (Hekou Group), Barremian to Barremian (129.4 - 113.0 Ma)

• upper part of group; lower part of the 4th or 5th informal formation-level units of the Hekou Group

• bed-level stratigraphic resolution

Environment/lithology: "floodplain"; fine-grained, red sandstone and lithified, brown, red mudstone

• floodplain deposits of a meandering river system
• "thick-layers of fine brick-red sandstone with thin beds of fine sandstone interlayered with brownish-red mudstone."

Size class: macrofossils

Preservation: cast, mold/impression, trace

Collection methods: surface (in situ),

Primary reference: L. Xing, D. Li, M. G. Lockley, D. Marty, J. Zhang, W. S. Persons, H. You, C. Peng, and S. B. Kümmell. 2015. Dinosaur natural track casts from the Lower Cretaceous Hekou Group in the Lanzhou-Minhe Basin, Gansu, northwest China: ichnology, track formation, and distribution. Cretaceous Research 52:194-205 [M. Carrano/M. Carrano]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 154181: authorized by Philip Mannion, entered by Philip Mannion on 30.01.2014, edited by Matthew Carrano

Creative Commons license: CC BY (attribution)

Taxonomic list

Reptilia
 Dinosauria -
Dinosauria indet. Owen 1842 dinosaur
many tracks including GGM-1