ammonites
Western Gion Mountain (Silurian to of Japan)

Where: Gokase, Japan (32.6° N, 131.2° E: paleocoordinates 32.6° N, 131.2° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Middle Member (Gionyama Formation), Wenlock to Wenlock (428.2 - 418.7 Ma)

• member-level stratigraphic resolution

Environment/lithology: marine; lithified, massive, conglomeratic limestone and lithified shale

Size class: mesofossils

Collection methods: Author has several papers from this area and locality, but each one describes a single component of the fauna.

Primary reference: E. Kido. 2009. Nanshanophyllum and Shensiphyllum (Silurian Rugosa) from the Kurosegawa Terrane, Southwest Japan, and Their Paleobiogeographic Implications. Journal of Paleontology 83(2):280-292 [A. Miller/A. Zaffos/A. Zaffos] more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 120774: authorized by Arnold Miller, entered by Andrew Zaffos on 21.11.2011

Creative Commons license: CC BY (attribution)