KY2, Hosoozawa valley, Kamiyasse (Permian of Japan)

Where: Japan (39.0° N, 141.5° E: paleocoordinates 17.8° N, 108.1° E)

• coordinate stated in text

• small collection-level geographic resolution

When: Nakadaira Formation, Sakmarian (293.5 - 290.1 Ma)

• About 30 m above the base of the Nakadaira Formation (equivalent in part to Sakamotozawa Formation).

• bed-level stratigraphic resolution

Environment/lithology: marine; lithified, medium-grained, brown sandstone

• Light greenish grey‒light brown, medium-grained sandstone

Size class: microfossils

Preservation: mold/impression

Collected by T. Shintani

• Repository: Department of Geology, Faculty of Science, Niigata University, with prefix NU-B (brachiopods).

Primary reference: J. I. Tazawa and T. Shintani. 2014. Early Permian (Sakmarian) brachiopods from Kamiyasse, South Kitakami Belt, northeast Japan. Science Reports, Niigata University (Geology) 29:13-41 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 157798: authorized by Matthew Clapham, entered by Matthew Clapham on 04.07.2014

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Rhynchonellata
 Spiriferinida - Spiriferellinidae
Crenispirifer nakamurai
Crenispirifer nakamurai Tazawa and Shintani 2014
 Rhynchonellida - Wellerellidae
Nipponirhynchia kamiyassensis n. sp., Uncinunellina sp., Uncinunellina cf. wangenheimi
Nipponirhynchia kamiyassensis n. sp. Tazawa and Shintani 2014
Uncinunellina sp. Grabau 1932