Where: Japan (39.8° N, 140.4° E: paleocoordinates 40.5° N, 139.6° E)
• coordinate based on nearby landmark
• small collection-level geographic resolution
When: NN16 nannofossil zone, Tentokuji Formation, Pliocene (5.3 - 2.6 Ma)
• STRATIGRAPHIC RELATIONS: From the Akita Fm, which overlie the Funakawa Fm, and is overlain by the Sasaoka Fm. AGE: Middle Pliocene, on the basis of foraminiferal and calcareous nanofossil biostratigraphy. STRATIGRAPHIC POSITION: From the "middle" member of the formation, near the top of the section.
• bed-level stratigraphic resolution
Environment/lithology: coastal; poorly lithified, fine-grained sandstone and poorly lithified, fine-grained sandstone
Size class: macrofossils
Collection methods: bulk,
• COLLECTORS: Not stated in text, but presumably including K. Amano et al. REPOSITORY: Not stated in text. Possibly Joetsu University or Akita University.
Primary reference: K. Amano, M. Suzuki, and T. Sato. 2000. Warm-water influx into Japan Sea in the middle Pliocene - Molluscan faunas from the Tentokuji FOrmation around Mt. Taihei in Akita Prefecture. Journal of the Geological Society of Japan 106(4):299-306 [A. Hendy/A. Hendy]more details
Purpose of describing collection: paleoecologic analysis
PaleoDB collection 97111: authorized by Austin Hendy, entered by Austin Hendy on 17.07.2010
Creative Commons license: CC BY (attribution)
Taxonomic list
unclassified | |
Bivalvia | |
Mizuhopecten sp. Masuda 1963 scallop | |
Anomia chinensis jingle | |
Anadara (Anadara) amicula, "Anadara (Scapharca) ommaensis" = Scapharca
"Anadara (Scapharca) ommaensis" = Scapharca clam | |
"Lucinoma annulata" = Lucinoma annulatum
"Lucinoma annulata" = Lucinoma annulatum Reeve 1850 clam | |
Myadora japonica clam | |
"Spisula (Pseudocardium) sachalinensis" = Pseudocardium
"Spisula (Pseudocardium) sachalinensis" = Pseudocardium clam | |
"Felaniella usta" = Diplodonta
"Felaniella usta" = Diplodonta clam | |
Pseudamiantis tauyensis, "Veremolpa micra" = Timoclea (Veremolpa), Mercenaria stimpsoni, Mercenaria chitaniana, "Protothaca tateiwai" = Leukoma, "Phacosoma cf. tomikawensis" = Dosinia (Phacosoma), "Callista chinensis" = Callista (Callista) chinensis
Pseudamiantis tauyensis venus clam
"Veremolpa micra" = Timoclea (Veremolpa) venus clam
Mercenaria stimpsoni quahog
Mercenaria chitaniana quahog
"Protothaca tateiwai" = Leukoma venus clam
"Phacosoma cf. tomikawensis" = Dosinia (Phacosoma) venus clam
"Callista chinensis" = Callista (Callista) chinensis Holten 1802 venus clam | |
Dinocardium angustum, "Clinocardium (Clinocardium) decoratum" = Clinocardium (Clinocardium) nuttallii
Dinocardium angustum cockle
"Clinocardium (Clinocardium) decoratum" = Clinocardium (Clinocardium) nuttallii Conrad 1837 cockle | |
"Megangulus zyonoensis" = Tellina (Megangulus)
"Megangulus zyonoensis" = Tellina (Megangulus) tellin clam | |
"Anisocorbula ventusta" = Corbula (Anisocorbula)
"Anisocorbula ventusta" = Corbula (Anisocorbula) clam | |
Acila (Truncacila) isignis divaricate nutclam | |
Gastropoda | |
Leucotina sp. Adams 1860 snail | |
Syrnola sp. Adams 1860 snail
Turbonilla sp. Risso 1826 snail | |
Puncturella (Puncturella) nobilis puncturella | |
Umbonium (Suchium) akitanum top snail | |
Oenopota sp. Mörch 1852 cone shell
Propebela (Turritoma) yokoyamai cone shell | |
Ophiodermella ogurana turrid
Ophiodermella miyatensis turrid | |
Ithycythara sp. Woodring 1928 snail | |
"Noditerebra cf. tsuboiana" = Duplicaria
"Noditerebra cf. tsuboiana" = Duplicaria auger snail | |
Suavodrillia declivis snail | |
Cyllene aff. pulchella snail
Reticunassa acutidentata snail | |
Buccinum sp., Mohnia yanamii, Mohnia sp., Neptunea sp., Neptunea (Barbitronia) cf. arthritica, "Trophonopsis uyemurai" = Neptunea (Trophonopsis), Ancistrolepis masudaensis
Buccinum sp. Linnaeus 1758 true whelk
Mohnia yanamii true whelk
Mohnia sp. Friele 1878 true whelk
Neptunea sp. Röding 1798 true whelk
Neptunea (Barbitronia) cf. arthritica true whelk
"Trophonopsis uyemurai" = Neptunea (Trophonopsis) true whelk
Ancistrolepis masudaensis true whelk | |
"Scalptia kurodai" = Trigonostoma (Scalptia)
"Scalptia kurodai" = Trigonostoma (Scalptia) snail | |
Ocinebrellus ogasawarai snail | |
Olivella japonica olive snail | |
Littorina (Littorina) brevicula periwinkle | |
Cryptonatica janthostoma Deshayes 1839 moon snail
Euspira pila moon snail
Glossaulax didyma Röding 1798 moon snail
Mammilla sp. Schumacher 1817 moon snail | |
Antiplanes contraria snail | |
Turritella (Neohaustator) saishuensis turret shell SUBSPECIES: Turritella (Neohaustator) saishuensis motidukii
| |
Bittium asatoi cerith snail | |
Acteocina insignis barrel-bubble | |
Retusa sp. Brown 1827 snail |