Hitokita, along the Natori River (Miocene of Japan)

Where: Japan (38.2° N, 140.8° E: paleocoordinates 41.2° N, 138.2° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Moniwa Formation, Langhian (16.0 - 13.8 Ma)

• Moniwa Formation ranges from 16-15 Ma, according to Ogasawara (1994).

• group of beds-level stratigraphic resolution

Environment/lithology: shoreface; poorly lithified, pebbly, shelly/skeletal sandstone

• Interpreted as tidal zone to shallow marine, gravelly and rocky bottom by Sato (1991)
• Described as "impure limestone" by Hatai but the Coptothyris assemblages are in pebbly-granule coarse sandstones, partly with impure limestone, according to Sato (1991). It is likely that the impure limestone are more shell-rich intervals of the sandstone.

Size class: macrofossils

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

Primary reference: K. Hatai, K. Masuda, and H. Noda. 1973. Marine fossils from the Moniwa Formation distributed along the Natori River, Sendai, northeast Honshu, Japan, part 1. Brachiopoda from the Moniwa Formation. Saito Ho-on Kai Museum Research Bulletin 42:9-19 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 203319: authorized by Matthew Clapham, entered by Matthew Clapham on 09.08.2019

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Rhynchonellata
 Terebratulida - Cancellothyrididae
Terebratulina tohokuensis
Terebratulina tohokuensis Nomura and Hatai 1936