Onimarua Quarry, Ofunato City (Carboniferous of Japan)

Where: Japan (39.1° N, 141.7° E: paleocoordinates 0.5° N, 85.4° E)

• coordinate estimated from map

• local area-level geographic resolution

When: H2 Member (Hikoroichi Formation), Visean (346.7 - 330.9 Ma)

• upper part of Viséan.

• formation-level stratigraphic resolution

Environment/lithology: fine-grained, coarse, tuffaceous sandstone

• A fine- to coarse-grained, iill-sorted, tuffaceous sandstone bed.

Size class: macrofossils

Collection methods: National Science Museum, Tokyo

Primary reference: T. Kase. 1988. Early Carboniferous (Viséan) gastropods from the Hikoroichi Formation of the Kitakami Mountains, northeast Japan. Transactions and Proceedings of the Palaeontological Society of Japan 149:361-370 [P. Wagner/P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 59832: authorized by Pete Wagner, entered by Pete Wagner on 17.04.2006, edited by Bethany Allen

Creative Commons license: CC BY (attribution)

Taxonomic list

Gastropoda
 Murchisoniina - Lophospiridae
Kawanamia onimarensis n. gen. n. sp.
Kawanamia onimarensis n. gen. n. sp. Kase 1988 snail
 Murchisoniina - Gosseletinidae
Baylea yvanii Léveillé 1835 snail
 Neritoina - Plagiothyridae
Littorinides cf. solidum2 de Koninck 1844 snail
 Euomphalina - Euomphalidae
"Straparollus (Euomphalus) sp." = Euomphalus, Straparollus (Euomphalus) asanoi n. sp.
"Straparollus (Euomphalus) sp." = Euomphalus Sowerby 1814 snail
Straparollus (Euomphalus) asanoi n. sp. Kase 1988 snail
 Zygopleuroidea - Pseudozygopleuridae
Bivalvia
 Cardiidia - Sanguinolitidae
Sanguinolites bisectus n. sp.1 Hayasaka 1925 clam