Iwaki, Santonian (Cretaceous of Japan)

Where: Fukushima, Japan (37.1° N, 140.9° E: paleocoordinates 48.6° N, 130.9° E)

• coordinate estimated from map

When: Inoceramus amakusensis inoceramid zone, Tamayama Formation (Futaba Group), Santonian (86.3 - 83.6 Ma)

• lower Santonian, Inoceramus amakusensis Subzone

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithology not reported

Primary reference: T. Uyeno and Y. Hasegawa. 1986. A new Cretaceous ganopristoid sawfish of the genus Ischyrhiza from Japan. Bulletin of the National Science Museum Tokyo, Series C 12(2):67-72 [M. Uhen/M. Uhen]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 91414: authorized by Mark Uhen, entered by Mark Uhen on 21.09.2009

Creative Commons license: CC BY (attribution)

Taxonomic list

Chondrichthyes
 Sclerorhynchiformes - Sclerorhynchidae
Ischyrhiza iwakiensis n. sp. Uyeno and Hasegawa 1986 elasmobranch