Hirotomi, undifferentiated molluscs (Miocene of Japan)

Where: Hokkaido, Japan (42.5° N, 142.2° E: paleocoordinates 43.1° N, 140.6° E)

• coordinate based on nearby landmark

• local area-level geographic resolution

When: Furanui Formation, Langhian (16.0 - 13.8 Ma)

• early Middle Miocene

• group of beds-level stratigraphic resolution

Environment/lithology: coastal; lithified siliciclastic sediments

Size class: macrofossils

Primary reference: R. Uchimura and R. Majima. 1992. The mixed sea area of warm- and cold-water molluscs of the Japanese early Middle Miocene - The case study in the Furanui Formation, mid-Hokkaido, Japan. Journal of the Geological Society of Japan 98(12):1129-1144 [W. Kiessling/U. Merkel]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 77921: authorized by Wolfgang Kiessling, entered by Uta Merkel on 23.01.2008

Creative Commons license: CC BY (attribution)

Taxonomic list

Gastropoda
 Neotaenioglossa - Calyptraeidae
Calyptraea sp. Lamarck 1799 slipper shell
 Cerithioidea - Turritellidae
Turritella sp. Lamarck 1799 turret shell
 Cerithioidea - Potamididae
Cerithidea sp. Swainson 1840 horn snail
 Cerithioidea - Batillariidae
Batillaria sp. Benson 1842 snail
 Neogastropoda - Mitridae
Mitra (Vicimitra) sp. Lamarck 1798 mitre shell
listed as Vicimitra sp.
 Neogastropoda - Buccinidae
Searlesia sp. Harmer 1914 true whelk
Siphonalia sp. Adams 1863 true whelk
 Neogastropoda - Terebridae
Terebra sp. Bruguière 1789 auger snail
 Sorbeoconcha - Naticidae
Natica sp. Scopoli 1777 moon snail
Bivalvia
 Arcida - Arcidae
Anadara sp. Gray 1847 ark
 Arcida - Glycymerididae
Glycymeris sp. Da Costa 1778 clam
 Pectinida - Anomiidae
Anomia sp. Linnaeus 1758 jingle
 Pectinida - Pectinoidae
Chlamys sp. Röding 1798 scallop
 Ostreida - Ostreidae
Ostrea sp. Linnaeus 1758 oyster
 Pholadida - Teredinidae
Teredo sp. Linnaeus 1758 clam
 Pholadida - Myidae
Mya sp. Linnaeus 1758 softshell clam
 Cardiida - Veneridae
Meretrix sp. Lamarck 1799 venus clam
Dosinia sp. Scopoli 1777 venus clam
 Cardiida - Mactridae
Spisula sp. Gray 1837 clam
 Cardiida - Tellinidae
"Peronidia sp." = Tellina (Peronidia)
"Peronidia sp." = Tellina (Peronidia) tellin clam
 Solenida - Pharidae
Siliqua sp. Mühlfeld 1811 clam
 Nuculida - Nuculidae
Acila (Truncacila) sp. Grant and Gale 1931 divaricate nutclam