SNF34, Sakamotozawa area, Taiheiyo Cement (Permian of Japan)

Where: Japan (39.1° N, 141.6° E: paleocoordinates 19.4° N, 110.7° E)

• coordinate stated in text

• outcrop-level geographic resolution

When: Shiraishi Member (Sakamotozawa Formation), Kungurian (279.3 - 272.3 Ma)

• Until now, we have no any evidence suggesting the Bolorian conclusively, such as Brevaxina and Misellina, for the age of SNF34. Combining all these lines of available information, however, this sample is probably slightly younger than Yakhtashian, and a Bolorian age seems to be more advisable judging mainly from the occurrences of Pseudofusulina dzamantalensis, Darvasites minatoi, and Kubergandella? sp

• group of beds-level stratigraphic resolution

Environment/lithology: lithified limestone

Size class: macrofossils

Primary reference: K. Ueno, T. Shintani, and J. I. Tazawa. 2009. Fusuline foraminifera from the upper part of the Sakamotozawa Formation, South Kitakami Belt, northeast Japan. Science Reports, Niigata University (Geology) 24:27-61 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 194375: authorized by Matthew Clapham, entered by Matthew Clapham on 18.06.2018

Creative Commons license: CC BY (attribution)

Taxonomic list

Foraminifera
 Fusulinoidea - Boultoniidae
"Minojapanella (Minojapanella) elongata" = Minojapanella elongata
"Minojapanella (Minojapanella) elongata" = Minojapanella elongata Fujimoto and Kanuma 1953
 Fusulinoidea - Staffellidae
 Fusulinoidea - Schwagerinidae
Pseudofusulina "sp. A" Dunbar and Skinner 1931
Pseudofusulina "sp. B" Dunbar and Skinner 1931
Pseudofusulina spp. Dunbar and Skinner 1931
Chalaroschwagerina spp. Skinner and Wilde 1965
Darvasella sp. Leven 1992
Darvasites minatoi Kanmera and Mikami 1965
? Kubergandella sp. Leven 1992
 Fusulinoidea - Schubertellidae
Schubertella "sp. A" Staff and Wedekind 1910
Schubertella spp. Staff and Wedekind 1910