Where: Japan (42.2° N, 142.7° E: paleocoordinates 47.0° N, 132.0° E)

• coordinate stated in text

• small collection-level geographic resolution

When: U2 Member (Chinomigawa Formation), Early/Lower Campanian (83.5 - 70.6 Ma)

• Contains the lower Campanian inoceramids, Sphenoceramus nagaoi (Matsumoto and Ueda, 1962) in the lower part and S. orientalis (Sokolov, 1914) in the upper part.

• bed-level stratigraphic resolution

Environment/lithology: marine; lithified, concretionary siliciclastic sediments

Size class: macrofossils

Collected by K. Sakakibara in 1978

Primary reference: Y. Shigeta. 2014. Morewites, a new Campanian (Late Cretaceous) heteromorph ammonoid genus from Hokkaido, Japan. Paleontological Research 18(1):1-5 [M. Clapham/M. Clapham/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 174599: authorized by Matthew Clapham, entered by Matthew Clapham on 16.11.2015

Creative Commons license: CC BY (attribution)