Sache Region, Assemblage 6 (Cretaceous to of China)

Where: Xingjian, China (40.0° N, 100.0° E: paleocoordinates 39.6° N, 92.1° E)

• coordinate estimated from map

When: Yigeziya Formation, Late/Upper Cretaceous to Late/Upper Cretaceous (100.5 - 5.3 Ma)

• The Upper Cretaceous strata in the Shache Depression are named the Yenjisa Group and are subdivided into three formations, the Kukebai, Wuyitake and Yigeziya Formations, in ascending order.

Environment/lithology: marine; lithified, green siliciclastic sediments and lithified, gray, red limestone

• The Upper Cretaceous contains green marine clastic rocks and reddish grey limestone and has abundant fossils of Mediterranean bivalves, foraminifers, gastropods, spores and pollen, dinoflagellate cysts and acritarchs

Size class: microfossils

Preservation: soft parts, original sporopollenin

Primary reference: W. Da-Ning and Z. Ying-Niang. 1990. Late Cretaceous to Tertiary palynofloras in Xinjiang and Qinghai, China. Review of Palaeobotany and Palynology 65:9-104 [C. Jaramillo/G. Doria/A. Cardenas ]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 140045: authorized by Carlos Jaramillo, entered by Gabriela Doria on 27.02.2013

Creative Commons license: CC BY (attribution)

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