Where: Osaka, Japan (34.4° N, 135.4° E: paleocoordinates 34.4° N, 135.4° E)

• coordinate stated in text

• small collection-level geographic resolution

When: Senpoku Formation (Osaka Group), Middle Pleistocene (0.8 - 0.1 Ma)

• Near the bottom of the marine bed 5 (Ma 5) of the Senpoku Formation in the upper part of the Osaka Group. As to the age of the fossil bearing horizon (Ma 5), Azuki tephra, the volcanic ash layer in the lower part of Ma 3 that is 20m below Ma 5 was dated at 0.87 ± 0.07 Ma by fission track dating, Recent correlation of the Osaka Group with the oxygen isotope record showed that Ma 5 was assignable to the marine isotope stage 17, which started at 712 ka

•

•Originally listed as from the late Miocene by Kobayashi et al. (2006)

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; sandy siltstone

Size class: macrofossils

Collected in 1994

Primary reference: Y. Kobayashi, Y. Tomida, T. Kamei and T. Eguchi. 2006. Anatomy of a Japanese tomistomine crocodylian, Toyotamaphimeia machikanensis (Kamei et Matsumoto, 1965) from the Middle Pleistocene of Osaka prefecture: the reassessment of its phylogenetic status within Crocodylia. National Science Museum Monograph 35:1-121 [P. Mannion/P. Mannion/P. Mannion]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 143884: authorized by Philip Mannion, entered by Philip Mannion on 26.04.2013

Creative Commons license: CC BY (attribution)