Where: Nagano, Japan (36.4° N, 138.3° E: paleocoordinates 39.1° N, 135.7° E)

• coordinate based on political unit

When: Yokoo Formation, Middle Miocene (16.0 - 11.6 Ma)

• from upper part of formation; age based on radiolarians and other fossils from same strata

Environment/lithology: marine; lithology not reported

Size class: macrofossils

Primary reference: H. Suzuki. 2018. Fossil evidence of the hammerjaw fish, Omosudis sp. (Teleostei, Aulopiformes) from the middle Miocene Yokoo Formation in Nagano Prefecture, central Japan. Paleontological Research 22:210-217 [P. Holroyd/P. Holroyd/P. Holroyd]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 227623: authorized by Patricia Holroyd, entered by Patricia Holroyd on 23.10.2022

Creative Commons license: CC BY (attribution)