Kadosawa Limestone quarries, Nabeyama, Tochigi Prefecture (Hayasaka coll) (Permian of Japan)

Where: Japan (36.5° N, 139.6° E: paleocoordinates 19.9° N, 110.1° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Nabeyama Formation, Roadian (272.3 - 268.8 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: lithified, black, argillaceous, carbonaceous limestone

Size class: macrofossils

Collected by Ichiro Hayasaka in 1926, 1932

• Small collection made in 1926, larger in summer of 1932

Primary reference: I. Hayasaka. 1932. An Upper Carboniferous brachiopod fauna of Japan. Journal of the Geological Society of Tokyo 39:547-551 [M. Clapham/M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 125086: authorized by Matthew Clapham, entered by Matthew Clapham on 03.03.2012

Creative Commons license: CC BY (attribution)

Taxonomic list

Strophomenata
 Strophomenida - Daviesiellidae
? Daviesiella ? comoides Sowerby 1823
Unlikely ID
 Productida - Echinoconchidae
"Echinoconchus" ? defensus Thomas 1914
Possibly Vediproductus
 Orthotetida - Schuchertellidae
 Orthotetida - Meekellidae
Meekella gigantea n. sp. Hayasaka 1932
Orthothetina eusarkos Abich 1878
n. ssp. lata
Orthothetina planoconvexa n. sp. Hayasaka 1933
Rhynchonellata
 Spiriferida - Martiniidae
Martinia sp. M'Coy 1844
 Spiriferida - Spiriferidae
"Spirifer" acutiplicatus n. sp. Hayasaka 1933
 Spiriferida - Elythidae
Squamularia sp. Gemmellaro 1899
 Orthida - Schizophoriidae
Orthotichia japonica n. sp. Hayasaka 1932
includes ssp. striata
 Orthida - Enteletidae
Enteletes acutiplicatus n. sp. Hayasaka 1932