Where: Japan (35.3° N, 136.4° E: paleocoordinates 15.3° N, 103.0° E)

When: Ryozensan limestone Formation, Sakmarian (293.5 - 290.1 Ma)

Environment/lithology: marine; limestone

Size class: macrofossils

Collected by Mr. Y. Yoshikawa

Primary reference: M. Goto. 1994. Palaeozoic and early Mesozoic fish faunas of the Japanese Islands. The Island Arc 3(1994):247-254 [M. Clapham/P. Vazquez]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 133439: authorized by Matthew Clapham, entered by Priscilla Vazquez on 13.09.2012

Creative Commons license: CC BY (attribution)