Where: Japan (35.3° N, 135.0° E: paleocoordinates 39.0° N, 112.6° E)

• coordinate estimated from map

• small collection-level geographic resolution

When: Waruishi Formation (Yakuno Group), Aegean to Aegean (247.2 - 242.0 Ma)

• Lower Anisian

• bed-level stratigraphic resolution

Environment/lithology: marine; lithified lithology not reported

Size classes: mesofossils, microfossils

Primary reference: M. Goto, N. Kuga, and K. Hachiya. 1991. On the hybodont elasmobranch teeth of three genera from the Mesozoic of Japan. Journal of the Geological Society of Japan 97(9):743-750 [M. Clapham/M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 119671: authorized by Matthew Clapham, entered by Matthew Clapham on 31.10.2011

Creative Commons license: CC BY (attribution)