Daisyaka, Higasi-Tugaru-gun (Pleistocene of Japan)

Where: Japan (40.8° N, 140.6° E: paleocoordinates 40.9° N, 140.4° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Daishaka Formation, Calabrian (1.8 - 0.8 Ma)

• From the lower part of the Sandstone formation. Based on stratigraphic position above the Sandy shale formation and below the Tuff formation, the fossils derive from what is now called the Daishaka Formation.

• group of beds-level stratigraphic resolution

Environment/lithology: coastal; unlithified, muddy sandstone

• "Upper sublittoral"
• Rather coarse-grained sandstone, partly conglomeratic and muddier at its lower than at its upper part.

Size class: macrofossils

Collection methods: Repository: Institute of Geology and Paleontology, Tohoku University, Sendai (IGPS)

Primary reference: K. M. Hatai. 1940. The Cenozoic Brachiopoda of Japan. Science Reports, Tohoku Imperial University, Series 2 20:1-413 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 190674: authorized by Matthew Clapham, entered by Matthew Clapham on 13.12.2017

Creative Commons license: CC BY (attribution)

Taxonomic list

Rhynchonellata
 Terebratulida - Terebrataliidae
Terebratalia coreanica Adams and Reeve 1850
Coptothyris grayi Davidson 1852
 Terebratulida - Laqueidae
Laqueus rubellus Sowerby 1846
 Rhynchonellida - Hemithirididae