ammonites
"Acrospirifer" fongi-Eospiriferina lachrymosa Comm., Yintang Fm. at Yintang (Devonian of China)

Where: Guangxi, China (24.1° N, 110.0° E: paleocoordinates 0.1° N, 118.7° E)

• coordinate based on political unit

• local area-level geographic resolution

When: Yintang Formation, Eifelian (391.9 - 388.1 Ma)

• Lower part of formation.

• member-level stratigraphic resolution

Environment/lithology: marine; calcareous mudstone and carbonate

• "probably a medium-diversity, quiet water, BA 3 community, but the restrictive factor lower the diversity is uncertain."
• "Some of the sehlls occur as articulated specimens in a calcareous mudstone matrix, whereas others occur as disarticulated valves in a calcareous matrix."

Collection methods: "The collection available for study contains more than 100 specimens, which makes it likely that some of the rarer items are unknown."

Primary reference: Y. Wang, A. J. Boucot, J.Y. Rong and X.C. Yang. 1987. Community paleoecology as a geologic tool: the Chinese Ashgillian-Eifelian (latest Ordovician through early Middle Devonian) as an example. Geological Society of America Special Paper 211:1-100 [M. Foote/M. Foote/M. Foote] more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 25732: authorized by Michael Foote, entered by Michael Foote on 24.09.2002