Kitasawa, Toyoma-machi (Permian of Japan)

Where: Japan (38.7° N, 141.3° E: paleocoordinates 23.6° N, 113.8° E)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Wordian (268.8 - 265.1 Ma)

• Stratigraphy details are unclear. Fossils assigned to Nishikori Formation (stated to be an equivalent of the Kanokura Formation) in introduction, but locality and horizon info gives unit as Maiya Formation (below Lyttonia bed)

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified, black shale

Size class: macrofossils

Preservation: mold/impression

Collected by F. Ueda

Primary reference: I. Hayasaka. 1967. Some Permian fossils from southern Kitakami. VII Two species of Phymatifer. Proceedings of the Japan Academy 43:143-147 [M. Clapham/M. Clapham]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 149798: authorized by Matthew Clapham, entered by Matthew Clapham on 26.08.2013

Creative Commons license: CC BY (attribution)

Taxonomic list

Gastropoda
 Euomphalina - Euomphalidae
"Phymatifer aff. nodocarinatus" = Euomphalus nodocarinatus
"Phymatifer aff. nodocarinatus" = Euomphalus nodocarinatus Wanner 1922 snail