Izumo, San-in (Miocene of Japan)

Where: Japan (35.3° N, 132.8° E: paleocoordinates 37.6° N, 130.2° E)

• coordinate based on nearby landmark

• local area-level geographic resolution

When: Serravallian (13.8 - 11.6 Ma)

• Age given as middle to late Middle Miocene

• member-level stratigraphic resolution

Environment/lithology: foreshore; lithified siliciclastic sediments

• Neritic environment

Size class: macrofossils

Collection methods: Summary of all mossulscs recovered from area.

Primary reference: K. Takayasu. 1986. Characteristics of the Miocene molluscan assemblages from central San-in District, Southwest Honshu, Japan. Monograph of the Mizunami Fossil Museum 6:155-169 [W. Kiessling/W. Kiessling/S. Bruning]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 44962: authorized by Wolfgang Kiessling, entered by Wolfgang Kiessling on 23.09.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Scaphopoda
 Dentaliida - Dentaliidae
Fissidentalium yokoyamai
Gastropoda
 Trochoidea - Trochidae
Protorotella sp., Trochus sp., Calliostoma simane
Protorotella sp. Makiyama 1925 top snail
Trochus sp. Linnaeus 1758 top snail
 Trochoidea - Turbinidae
Margarites sinzi, Galeoastraea sp.
 Patellida - Lottiidae
"Acmaea" sp.
"Acmaea" sp. Eschscholtz 1830 limpet
 Cerithioidea - Turritellidae
Turritella tanaguraensis
 Sorbeoconcha - Naticidae
"Neverita (Glossaulax) kiritaniana" = Glossaulax didyma, Euspira sp., "Sinum yabei" = Sinum ineptum
"Neverita (Glossaulax) kiritaniana" = Glossaulax didyma Röding 1798 moon snail
Euspira sp. Agassiz 1837 moon snail
"Sinum yabei" = Sinum ineptum Yokoyama 1924 moon snail
 Neogastropoda - Nassariidae
Nassarius sp.
Nassarius sp. Duméril 1806 snail
 Neogastropoda - Buccinidae
Buccinum yatukanum, Neptunea sp., Phos iwakianus, Siphonalia sp.
Neptunea sp. Röding 1798 true whelk
Phos iwakianus true whelk
ssp. fujinaensis
Siphonalia sp. Adams 1863 true whelk
 Neogastropoda - Cancellariidae
Sydaphera sp.
Sydaphera sp. Iredale 1929 snail
 Neogastropoda - Turridae
Surculites cryptoconoides
Surculites cryptoconoides turrid
Surcurites cryptoconoides
 Neogastropoda - Olividae
Olivella cf. iwakiensis
 Neogastropoda - Volutidae
Fulgoraria sinziensis
 Neogastropoda - Muricidae
Boreotrophon cf. elegantula, ? Ocenebra sp.
? Ocenebra sp. Leach in Gray 1847 murex snail
 Sorbeoconcha - Cassidae
Liracassis japonica
Bivalvia
 Nuculanida - Sareptidae
Portlandia gratiosa
 Nuculanida - Nuculanidae
Saccella confusa
Saccella confusa pointed nut clam
ssp. toyomaensis
 Nuculida - Nuculidae
Ennucula praenipponica, "Acila submirabilis" = Acila (Acila) submirabilis
"Acila submirabilis" = Acila (Acila) submirabilis Makiyama 1926 divaricate nutclam
 Mytilida - Mytilidae
Modiolus difficilis, "Mytilus grayanus" = Crenomytilus grayanus
"Mytilus grayanus" = Crenomytilus grayanus Dunker 1853 mussel
 Pectinida - Pectinoidae
Chlamys sp., "Chlamys kaneharai" = Mimachlamys kaneharai, "Chlamys cf. otukae" = Chlamys (Chlamys) otukae, Kotorapecten kagamianus, Placopecten cf. promollitus, Placopecten sp., Mizuhopecten sp.
Chlamys sp. Röding 1798 scallop
"Chlamys kaneharai" = Mimachlamys kaneharai Yokoyama 1926 scallop
"Chlamys cf. otukae" = Chlamys (Chlamys) otukae Masuda and Sawada 1961 scallop
Kotorapecten kagamianus scallop
two subspecies
Placopecten sp. Verrill 1897 scallop
Mizuhopecten sp. Masuda 1963 scallop
 Pectinida - Anomiidae
Anomia sp.
Anomia sp. Linnaeus 1758 jingle
 Ostreida - Ostreidae
Crassostrea gigas
Crassostrea gigas Thunberg 1793 giant Pacific oyster
 Arcida - Arcidae
Anadara tazawensis
 Arcida - Glycymerididae
Glycymeris sp., Glycymeris cisshuensis
Glycymeris sp. Da Costa 1778 clam
sp. A and B
Glycymeris cisshuensis Makiyama 1926 clam
 Cardiida - Cardiidae
Serripes cf. laperousi, "Clinocardium shinjiense" = Ciliatocardium shinjiense, ? Laevicardium shiobarense
"Clinocardium shinjiense" = Ciliatocardium shinjiense Yokoyama 1923 cockle
 Cardiida - Tellinidae
Macoma optiva
Macoma optiva tellin clam
 Cardiida - Veneridae
"Protothaca cf. tateiwai" = Leukoma, "Protothaca sp." = Leukoma, Callithaca sp., "Chione" sp., "Kaneharaia kaneharai" = Dosinia (Kaneharaia), "Phacosoma hataii" = Dosinia (Phacosoma), Mercenaria yokoyamai, Pitar cf. semeliformis, Saxidomus purpurata, "Callista chinensis" = Callista (Callista) chinensis
"Protothaca cf. tateiwai" = Leukoma venus clam
"Protothaca sp." = Leukoma Römer 1857 venus clam
Callithaca sp. Dall 1902 venus clam
"Chione" sp. von Mühlfield 1811 venus clam
"Kaneharaia kaneharai" = Dosinia (Kaneharaia) venus clam
"Phacosoma hataii" = Dosinia (Phacosoma) venus clam
"Callista chinensis" = Callista (Callista) chinensis Holten 1802 venus clam
 Cardiida - Mactridae
"Spisula cf. voyi" = Mactromeris polynyma
"Spisula cf. voyi" = Mactromeris polynyma Stimpson 1860 clam
 Pholadida - Myidae
Mya cuneiformis
Mya cuneiformis Böhm 1915 softshell clam
 Pholadida - Teredinidae
"Teredo" sp.
"Teredo" sp. Linnaeus 1758 clam
 Solenida - Pharidae
Cultellus izumoensis
Cultellus izumoensis Yokoyama 1923 clam
 Hiatellida - Hiatellidae
Panopea nomurae
 Pandorida - Pandoridae
Pandora sp.
Pandora sp. Bruguière 1797 clam
 Thraciida - Thraciidae
Thracia higashinodonoensis
 Thraciida - Periplomatidae
Periploma besshoensis
 Lucinida - Lucinidae
"Lucinoma annulata" = Lucinoma annulatum
"Lucinoma annulata" = Lucinoma annulatum Reeve 1850 clam
 Carditida - Carditidae
Cyclocardia fujinaensis