Kawanishi Primary School, Gujo, Oe-cho, Kyoto Prefecture (Permian of Japan)

Where: Japan (35.4° N, 135.1° E: paleocoordinates 32.2° N, 111.2° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Gujo Formation, Changhsingian (254.2 - 252.2 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified, black shale

Size class: macrofossils

Preservation: mold/impression, replaced with pyrite

Primary reference: K. Nakazawa and N.D. Newell. 1968. Permian bivalves of Japan. Memoirs of the Faculty of Science, Kyoto University, Series of Geology and Mineralogy 35(1):1-108 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 114491: authorized by Matthew Clapham, entered by Matthew Clapham on 15.08.2011

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Bivalvia
 Trigoniida - Myophoriidae
Costatoria kobayashii, Neoschizodus permicus n. sp.
Costatoria kobayashii Kambe 1951 clam
Neoschizodus permicus n. sp. Nakazawa 1960 clam
 Unionida - Actinodontophoridae
Actinodontophora aff. katsurensis
 Cardiida - Kalenteridae
Gujocardita oviformis n. gen. n. sp., Permophorus tenuistriatus n. sp.
Gujocardita oviformis n. gen. n. sp. Nakazawa and Newell 1968 clam
Permophorus tenuistriatus n. sp. Nakazawa and Newell 1968 clam
 Cardiidia - Sanguinolitidae
Vacunella rostrata n. sp.
Vacunella rostrata n. sp. Nakazawa and Newell 1968 clam
 Pholadomyida - Edmondiidae
Edmondia "sp. a", Edmondia "sp. b"
Edmondia "sp. a" de Koninck 1841 clam
Edmondia "sp. b" de Koninck 1841 clam
 Pholadomyida - Megadesmidae
Pyramus planus n. sp.
Pyramus planus n. sp. Nakazawa and Newell 1968 clam
 Mytilida - Mytilidae
Promytilus "sp. a", Promytilus ? maiyensis
Promytilus "sp. a" Newell 1942 mussel
Promytilus ? maiyensis Nakazawa and Newell 1968 mussel
 Ostreida - Pinnidae
Aviculopinna sp.
Aviculopinna sp. Meek 1864 oyster
 Ostreida - Bakevelliidae
Tambanella gujoensis n. gen. n. sp., Bakevellia (Bakevellia) "n. sp.", Bakevellia (Bakevellia) gujoensis n. sp., Towapteria cf. nipponica
Tambanella gujoensis n. gen. n. sp. Nakazawa and Newell 1968 oyster
Bakevellia (Bakevellia) gujoensis n. sp. Nakazawa 1959 oyster
Towapteria cf. nipponica Nakazawa and Newell 1968 oyster
 Ostreida - Ostreidae
? Lopha murakamii n. sp.
? Lopha murakamii n. sp. Nakazawa and Newell 1968 oyster
 Pectinida - Entoliidae
? Pernopecten sp.
? Pernopecten sp. Winchell 1865 scallop
 Pectinida - Hunanopectinidae
? Leptochondria "sp. a", ? Leptochondria "sp. b"
? Leptochondria "sp. a" Bittner 1891 scallop
? Leptochondria "sp. b" Bittner 1891 scallop
 Pectinida - Aviculopectinidae
Aviculopecten shiroshitai n. sp.
Aviculopecten shiroshitai n. sp. Nakazawa and Newell 1968 scallop
 Myalinida - Myalinidae
Septimyalina sp.
Septimyalina sp. Newell 1942 clam
Strophomenata
 Productida -
Spinomarginifera aff. kueichowensis
 Orthotetida - Meekellidae
"Schellwienella cf. ruber" = Orthothetina ruber
"Schellwienella cf. ruber" = Orthothetina ruber Frech 1911