Kita-Akashi, Sendai City (Miocene of Japan)

Where: Japan (38.2° N, 140.8° E: paleocoordinates 41.2° N, 138.1° E)

• coordinate estimated from map

• outcrop-level geographic resolution

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

• Early Middle Miocene

• group of beds-level stratigraphic resolution

Environment/lithology: shoreface; lithified, coarse-grained, gray, blue sandstone

• Interpreted as tidal zone to shallow marine, gravelly and rocky bottom by Sato (1991)
• Conglomerate and dark blue gray coarse-grained sandstone, mainly coarse-grained sandstone

Size class: macrofossils

Collection methods: Repository: SSME

Primary reference: M. Ehiro, M. Sato, and Y. Takaizumi. 2001. Occurrence of Aturia (Cephalopoda) from the Miocene Moniwa Formation of northeast Honshu, Japan and its paleoenvironmental significance. Earth Science (Chikyu Kagaku) 55:183-186 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 167460: authorized by Matthew Clapham, entered by Matthew Clapham on 18.03.2015, edited by Mark Uhen

Creative Commons license: CC BY (attribution)

Taxonomic list

Chondrichthyes
 Lamniformes - Otodontidae
"Uyenoa benedeni" = Parotodus benedenii
"Uyenoa benedeni" = Parotodus benedenii Le Hon 1871 mackerel shark
Cephalopoda
 Nautilida - Aturiidae
Aturia cubaensis Lea 1841 nautiloid