Hangochi, Amakusa (Eocene of Japan)

Where: Japan (32.4° N, 130.1° E: paleocoordinates 39.7° N, 124.1° E)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Middle Eocene (48.6 - 37.2 Ma)

• Stratigraphic information not given, although Yokoyama thought the unit was correlative with strata in the Miike coalfield. Both Lutetian and Bartonian strata are exposed on the Amakusa Islands.

• bed-level stratigraphic resolution

Environment/lithology: marine; lithified sandstone

Size class: macrofossils

Collected in 1897-1904

Primary reference: T. Nagao. 1928. Palaeogene fossils of the Island of Kyushu, Japan Part I. Science Reports of the Tohoku Imperial University 9(3):97-128 [M. Uhen/B. Shipps/M. Uhen]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 179913: authorized by Matthew Clapham, entered by Matthew Clapham on 03.07.2016

Creative Commons license: CC BY (attribution)

Taxonomic list

Bivalvia
 Pectinida - Limidae
Lima amaxensis n. sp. Yokoyama 1911 file clam
 Carditida - Carditidae
"Venericardia nipponica" = Venericardia (Venericor) nipponica
"Venericardia nipponica" = Venericardia (Venericor) nipponica Yokoyama 1911 clam
 Carditida - Crassatellidae
Crassatella fusca Yokoyama 1911 clam