Locality 6, Ajimu Basin, Oita Prefecture (Pliocene of Japan)

Where: Japan (33.4° N, 131.3° E: paleocoordinates 34.0° N, 130.5° E)

• coordinate estimated from map

• small collection-level geographic resolution

When: Tsubusagawa Formation, Pliocene (5.3 - 2.6 Ma)

• bed-level stratigraphic resolution

Environment/lithology: lacustrine; lithified sandstone

• "area of still water with floating-leaved plants"

Size classes: macrofossils, mesofossils

Preservation: original chitin

Primary reference: M. Hayashi, K. Yahiro, and E. Kitabayashi. 2003. Fossil insects and their paleoenvironments of the Pliocene Tsubusagawa Formation in Ajimu Basin, Oita Prefecture, Kyushu, Japan. Bulletin of the Mizunami Fossil Museum 30:167-173 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 165745: authorized by Matthew Clapham, entered by Matthew Clapham on 27.01.2015

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Insecta
 Dicondylia -
Coleoptera indet.
Coleoptera indet. Linnaeus 1758 beetle
 Coleoptera - Carabidae
Carabidae indet.
Carabidae indet. Latreille 1802 ground beetle
 Coleoptera - Dytiscidae
Dytiscidae indet.
Dytiscidae indet. Leach 1815 predaceous diving beetle
 Coleoptera - Chrysomelidae
Donaciinae indet., Donacia spp., Donacia (Cyphogaster) sp., "Donacia (Donaciomima) cf. versicolorea" = Donacia (Donacia) versicolorea
Donaciinae indet. Kirby 1837 leaf beetle
Donacia spp. Fabricius 1775 leaf beetle
Donacia (Cyphogaster) sp. Goecke 1934 leaf beetle
"Donacia (Donaciomima) cf. versicolorea" = Donacia (Donacia) versicolorea Brahm 1790 leaf beetle