Tanohata Area, Hiraiga Formation, Honshu (Cretaceous of Japan)

Where: Iwate, Japan (40.0° N, 141.8° E: paleocoordinates 52.8° N, 141.5° E)

• coordinate estimated from map

• local area-level geographic resolution

When: Hiraiga Formation (Miyako Group), Aptian (125.0 - 113.0 Ma)

• formation-level stratigraphic resolution

Environment/lithology: marine; calcareous 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 40553: authorized by Martin Aberhan, entered by Sabine Nürnberg on 25.06.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

Bivalvia
 Arcida - Glycymerididae
 Arcida - Parallelodontidae
 Arcida - Cucullaeidae
 Pectinida - Pectinoidae
Neithea (Neithella) notabilis Münster 1833 scallop
Neithea (Neithea) ficalhoi Choffat 1888 scallop
"Chlamys robinaldina" = Mimachlamys robinaldina Orbigny 1847 scallop
 Pectinida - Limidae
 Pectinida - Anomiidae
 Ostreida - Gryphaeidae
 Ostreida - Ostreidae
 Ostreida - Bakevelliidae
 Ostreida - Pinnidae
 Mytilida - Mytilidae
 Carditida - Astartidae
 Carditida - Crassatellidae
 Pholadida - Teredinidae
 Hippuritida - Polyconitidae
 Cardiida - Veneridae
 Cardiida - Cardiidae
 Hiatellida - Hiatellidae
Panopea (Myopsis) plicata Sowerby 1829 clam
 Pandorida - Laternulidae
 Thraciida - Periplomatidae
 Pholadomyida - Pholadomyidae
 Lucinida - Lucinidae
 Trigoniida - Megatrigonioidae
 Trigoniida - Trigoniidae
 Protobranchia - Nuculanidae
Mesosaccella insignis pointed nut clam