YEZ-11, Kumaoizawa (Cretaceous of Japan)

Where: Japan (43.3° N, 142.0° E: paleocoordinates 49.6° N, 132.7° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Inoceramus amakusensis inoceramid zone, Yezo Group, Santonian (86.3 - 83.6 Ma)

• Pebble nodule from the lower part of the Upper Yezo Group

• bed-level stratigraphic resolution

Environment/lithology: marine; lithified, nodular siliciclastic sediments

Size class: macrofossils

Collected by Kera

Primary reference: H. Collins, Y. Kanie, and H. Karasawa. 1993. Late Cretaceous crabs from Japan. Transactions and Proceedings of the Paleontological Society of Japan, N.S. 172:292-310 [C. Schweitzer/E. Johnson/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 185012: authorized by Matthew Clapham, entered by Matthew Clapham on 05.04.2017

Creative Commons license: CC BY (attribution)

Taxonomic list

 Decapoda - Diaulacidae
Diaulax yokoii Collins et al. 1993 crab
 Decapoda - Palaeocorystidae
"Notopocorystes (Notopocorystes) japonicus" = Joeranina japonica
"Notopocorystes (Notopocorystes) japonicus" = Joeranina japonica Jimbo 1894 crab