Zhuozishan, Wuhai City (Ordovician to of China)

Where: Mongolia, China (39.7° N, 106.8° E: paleocoordinates 16.7° S, 126.0° E)

When: Baltoniodus triangularis - Baltoniodus navis conodont zone, Upper Member (Sandaokan Formation), Floian to Floian (477.7 - 467.3 Ma)

• Upper part of formation. Xu et al. (2015) put the whole formation at Xinchang - Yiyang (Tremadoc-Floian) in age.

• formation-level stratigraphic resolution

Environment/lithology: open shallow subtidal; dolomitic limestone and quartzose sandstone

• near shore, shallow water, relatively high energy environment. (From Rong, Zhan & Xu 1999)
• Based on figure key in Xu et al. 2015.

Size class: macrofossils

Primary reference: R. Zhan, J. Jin, J. Rong and Y. Liang. 2013. The earliest known strophomenoids (Brachiopoda) from early Middle Ordovician rocks of South China. Palaeontology 56(5):1121-1148 [P. Wagner/P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 185763: authorized by Pete Wagner, entered by Pete Wagner on 14.05.2017

Creative Commons license: CC BY (attribution)

Taxonomic list

 Strophomenida - Glyptomenidae
Hesperinia sinensis n. sp. Rong and Zhan 1999