Osawa, Motoyoshi-cho (Subcolumbites zone) (Triassic of Japan)

Where: Japan (38.8° N, 141.5° E)

• Paleocoordinates: 4.9° N, 138.8° E (Wright 2013)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Spathian (248.1 - 246.7 Ma)

• Subcolumbites perrinismithi zone

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified siliciclastic sediments

Size class: macrofossils

Preservation: mold/impression

Collection methods: Repository: Department of Geology, Kaguwa University

Primary reference: Y. Bando and S. Shimoyama. 1974. Late Scythian ammonoids from the Kitakami Massif. Transactions and Proceedings of the Paleontological Society of Japan, N.S. 94:293-312 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 186958: authorized by Matthew Clapham, entered by Matthew Clapham on 08.07.2017

Creative Commons license: CC0 (CC0)

Taxonomic list

Cephalopoda
 Ceratitida - Dinaritidae
Stacheites floweri Kummel 1969 ceratite
 Ceratitida - Paragoceratidae
Prenkites graecoamericanus Renz and Renz 1948 ceratite
 Ceratitida - Hellenitidae
Hellenites sp. Renz and Renz 1948 ceratite
 Phylloceratida - Palaeophyllitidae
Eophyllites sp. Spath 1930 ammonite