Shioya Group Kanomatazawa Fm Molluscan Fauna Locality 4 (Miocene of Japan)

Also known as Locality 4

Where: Japan (36.7° N, 140.1° E)

• Paleocoordinates: 36.3° N, 138.5° E (Wright 2013)

• coordinate based on political unit

• local area-level geographic resolution

When: Lower Member (Kanomatazawa Formation), Late/Upper Miocene (11.6 - 5.3 Ma)

• middle unit of shioya group, divided into two members, lower and upper.

• formation-level stratigraphic resolution

Environment/lithology: marginal marine; lithified, coarse-grained conglomerate and lithified, fine-grained, medium sandstone

• This formation is subdivided into the lower and upper members. The two members differ from each other in their distribution as well as their lithological characteristics. The Lower member is distributed in the whole surveyed area showing similar lithology at every place. Distribution of the upper member is separated at the sekiya anticline.
• The Kanomatazawa formation is composed of conglomerate sandstone siltstone and acidic pyroclastic rocks. Lithology of the upper member is represented by mudstone in the western side whereas it is represented by coarse clastic sediments in the eastern side of the anticline.

Primary reference: Y. Iwasaki. 1970. The Shiobara-type Molluscan Fauna: An ecological analysis of fossil molluscs. Journal of the faculty of science, University of Tokyo, Section 2 17(3):351-444 [A. Miller/K. Bulinski/K. Bulinski]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 52222: authorized by Arnold Miller, entered by Kate Bulinski on 01.08.2005

Creative Commons license: CC0 (CC0)

Taxonomic list

Show authors, comments, and common names
Bivalvia
 Nuculanida - Nuculanidae
Saccella confusa
Saccella confusa pointed nut clam
 Lucinida - Lucinidae
"Lucinoma annulata" = Lucinoma annulatum
"Lucinoma annulata" = Lucinoma annulatum Reeve 1850 ringed lucine
 Cardiida - Cardiidae
Laevicardium shiobarense
 Cardiida - Veneridae
Callista ? sp., "Protothaca tateiwai" = Leukoma, Dosinia kaneharai, Dosinia japonica, Pseudamiantis ? pinguis
Callista ? sp. Poli 1791 venus clam
"Protothaca tateiwai" = Leukoma venus clam
Dosinia kaneharai venus clam
Dominant species at locality
Dosinia japonica venus clam
 Cardiida - Ungulinidae
"Felaniella usta" = Diplodonta
"Felaniella usta" = Diplodonta clam
 Arcida - Glycymerididae
Glycymeris cisshuensis
Glycymeris cisshuensis Makiyama 1926 bittersweet clam
 Arcida - Arcidae
Anadara ninohensis
 Pectinida - Pectinoidae
"Pecten (Patinopecten) paraplebejus" = Mizuhopecten paraplebejus
"Pecten (Patinopecten) paraplebejus" = Mizuhopecten paraplebejus Nomura and Hatai 1936 scallop
Scaphopoda
 Dentaliida - Dentaliidae
Dentalium yokoyamai
Gastropoda
 Sorbeoconcha - Naticidae
"Neverita kiritaniana" = Glossaulax didyma, "Sinum yabei" = Sinum ineptum
"Neverita kiritaniana" = Glossaulax didyma Röding 1798 moon snail
"Sinum yabei" = Sinum ineptum Yokoyama 1924 moon snail
 Neogastropoda - Buccinidae
Phos iwakianus, ? Siphonalia sp.
Phos iwakianus true whelk
? Siphonalia sp. Adams 1863 true whelk
 Neogastropoda - Olividae
Olivella sp.
Olivella sp. Swainson 1831 olive snail
 Neogastropoda - Cancellariidae
Cancellaria hukusimana
 Neotaenioglossa - Calyptraeidae
Crepidula sp.
Crepidula sp. Lamarck 1799 slipper shell
 Cerithioidea - Turritellidae
Turritella tanaguraensis