Ak-251, section 4, Akasaka (Permian of Japan)

Where: Japan (35.4° N, 136.6° E: paleocoordinates 19.7° N, 107.3° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Cancellina nipponica foram zone, Akasaka Formation, Roadian (272.3 - 268.8 Ma)

• Lower Member

• bed-level stratigraphic resolution

Environment/lithology: shallow subtidal; lithified, gray limestone

Size class: microfossils

Collection methods: peel or thin section,

• Repository: Museum of Nature and Human Activities, Hyogo, Japan (Fumio Kobayashi Collection).

Primary reference: F. Kobayashi. 2011. Permian fusuline faunas and biostratigraphy of the Akasaka Limestone (Japan). Revue de Paléobiologie, Genève 30:431-574 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 128819: authorized by Matthew Clapham, entered by Matthew Clapham on 17.06.2012

Creative Commons license: CC BY (attribution)

Taxonomic list

Foraminifera
 Fusulinoidea - Boultoniidae
Dunbarula oviformis Kobayashi 2006
 Fusulinoidea - Staffellidae
Pseudoreichelina sp. Miklukho-Maclay 1949
 Fusulinoidea - Neoschwagerinidae
Cancellina postnipponica Kobayashi 2011
 Fusulinoidea - Schwagerinidae
 Fusulinoidea - Schubertellidae
"Toriyamaia latiseptata" = Toriyamaia laxiseptata Kanmera 1956
Schubertella ovalis Kobayashi 2011
 Fusulinoidea - Verbeekinidae
Armenina sphaera Ozawa 1927