ammonites
Ahrubulage, Chabu Sumu Site III (Cretaceous of China)

Also known as CHABU-7, Chabu Site 7

Where: Nei Mongol, China (38.9° N, 107.3° E: paleocoordinates 40.0° N, 109.6° E)

• coordinate stated in text

• small collection-level geographic resolution

When: Jianchuan Formation (Zhidan Group), Late/Upper Barremian (130.0 - 125.5 Ma)

• bed-level stratigraphic resolution

Environment/lithology: fluvial-lacustrine; gray, yellow sandstone and tabular mudstone

• "laminated to massive mudstone interbedded with channel or crevasse-splay sandstones. The dominant lithology is light grey and buff-colored, moderately sorted sandstone with localized beds of siltstone, mudstone and sandstone."

Size class: macrofossils

Preservation: mold/impression, trace

Collected in 1984-2004

Collection methods: quarrying, surface (in situ),

Primary reference: M. G. Lockley, J. L. Wright, D. White, M. Matsukawa, J. Li, L. Feng, and H. Li. 2002. The first sauropod footprints from China. Cretaceous Research 23:363-381 [M. Carrano/M. Carrano/M. Carrano] more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 60511: authorized by Matt Carrano, entered by Kaitlin Maguire on 16.05.2006, edited by Matt Carrano