SK27, Imahorazawa (Permian of Japan)

Where: Japan (39.2° N, 141.6° E: paleocoordinates 17.9° N, 108.3° E)

• coordinate stated in text

• outcrop-level geographic resolution

When: Sakamotosawa Formation, Sakmarian (295.5 - 290.1 Ma)

• 20 m above the base of the Sakamotozawa Formation

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified, brown, gray, sandy shale

• Dark-grey to grey sandy shale and grey fine-grained sandstone

Size class: macrofossils

Preservation: mold/impression

Collection methods: Repository: Niigata University

Primary reference: J. I. Tazawa and T. Shintani. 2010. A Permian Boreal-Tethyan mixed brachiopod fauna from the Nagaiwa-Sakamotozawa area, South Kitakami Belt, NE Japan. Science Reports, Niigata University (Geology) 25:51-62 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 138383: authorized by Matthew Clapham, entered by Matthew Clapham on 16.01.2013

Creative Commons license: CC BY (attribution)

Taxonomic list

Strophomenata
 Productida - Scacchinellidae
Scacchinella sp. Gemmellaro 1891
 Productida - Echinoconchidae
Juresania sp.2 Fredericks 1928
Waagenoconcha humboldti d'Orbigny 1842
 Productida - Productellidae
Echinauris opuntia2 Waagen 1884
 Productida - Productidae
 Productida - Monticuliferidae
Auriculispina kanmerai n. sp.2 Tazawa and Shintani 2015
 Productida - Linoproductidae
Linoproductus simensis2 Tschernyschew 1902
 Orthotetida - Meekellidae