Mine Area, Aso Formation, Honshu (Triassic to of Japan)

Where: Yamaguchi, Japan (34.2° N, 131.2° E: paleocoordinates 44.6° N, 122.5° E)

• coordinate estimated from map

• local area-level geographic resolution

When: Aso Formation (Mine Group), Carnian to Carnian (237.0 - 208.5 Ma)

• Upper Carnian - Lower Norian

• formation-level stratigraphic resolution

Environment/lithology: paralic; sandstone

Size class: macrofossils

Preservation: cast, mold/impression

Primary reference: I. Hayami. 1975. A systematic survey of the Mesozoic Bivalvia from Japan. The University Museum, The University of Tokyo, Bulletin (10) [M. Aberhan/S. Nurnberg/S. Nurnberg]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 40179: authorized by Martin Aberhan, entered by Sabine N├╝rnberg on 19.06.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

Bivalvia
 Pectinida - Pectinoidae
Tosapecten suzukii scallop
subsp. okadai
 Pectinida - Limidae
 Pectinida - Heteropectinidae
"Asoella confertoradiata" = Eumorphotis (Asoella), "Asoella laevigata" = Eumorphotis (Asoella)
"Asoella confertoradiata" = Eumorphotis (Asoella) scallop
"Asoella laevigata" = Eumorphotis (Asoella) scallop
 Pectinida - Plicatulidae
 Pectinida - Oxytomidae
 Ostreida - Malleidae
 Mytilida - Mytilidae