Where: Miyagi, Japan (38.8° N, 141.5° E: paleocoordinates 38.5° N, 118.7° E)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Hiraiso Formation (Inai Group), Spathian (251.3 - 247.2 Ma)

• Bando (1970) originally assigned the Hiraiso Fm. to the Griesbachian, later it was assigned to the Smithian by Nakazawa et al. (1994). Reidentification of Bando's ammonite as Neocolumbites and discovery of Tirolites in the lower part of the formation suggests a Spathian age for the Hiraiso Formation (Shigeta & Nakajima, 2017).

• bed-level stratigraphic resolution

Environment/lithology: marine; conglomeratic sandstone

Size class: macrofossils

Collection methods: surface (in situ),

• UMUT: University Museum (University of Tokyo)

Primary reference: Y. Nakajima and R. R. Schoch. 2011. The first temnospondyl amphibian from Japan. Journal of Vertebrate Paleontology 31(5):1154-1157 [R. Butler/R. Butler]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 117523: authorized by Richard Butler, entered by Richard Butler on 22.09.2011

Creative Commons license: CC BY (attribution)