Where: Japan (35.3° N, 139.6° E: paleocoordinates 35.5° N, 139.4° E)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Koshima Formation, Calabrian (1.8 - 0.8 Ma)
• Lower-middle Koshiba Formation is constrained to 1.63-1.475 Ma (MIS 49-57) by nannofossil, planktonic foram, and oxygen isotope stratigraphy (Nozaki et al., 2014)
• group of beds-level stratigraphic resolution
Environment/lithology: marine; poorly lithified, tuffaceous sandstone
Size class: macrofossils
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 190822: authorized by Matthew Clapham, entered by Matthew Clapham on 18.12.2017
Creative Commons license: CC BY (attribution)
Taxonomic list
Rhynchonellata | |
Laqueus blanfordi Dunker 1882
Laqueus kosibensis Hatai 1936
Laqueus rubellus Sowerby 1846
Laqueus quadratus Yabe and Hatai 1934 | |
Diestothyris frontalis Middendorff 1849
? Coptothyris grayi Davidson 1852
Terebratalia gouldii Dall 1891 | |
Kurakithyris nipponensis, Kurakithyris quantoensis n. gen. n. sp.
Kurakithyris nipponensis Yokoyama 1910
Kurakithyris quantoensis n. gen. n. sp. Hatai 1946 | |
Dallina raphaelis Dall 1870 | |
Terebratulina crossei Davidson 1882
Terebratulina kiiensis Dall and Pisbry 1891
Terebratulina hashimotoi Hatai 1936
Terebratulina miuraensis Hatai 1940 | |
Gryphus angularis Hayasaka 1922 |