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 | |
Gastropoda | |
Umbonium (Suchium) akitanum top snail | |
Puncturella (Puncturella) nobilis puncturella | |
Antiplanes contraria snail | |
Turritella (Neohaustator) saishuensis turret shell SUBSPECIES: Turritella (Neohaustator) saishuensis motidukii
| |
Bittium asatoi cerith snail | |
Olivella japonica olive snail | |
Ocinebrellus ogasawarai snail | |
Buccinum sp., Ancistrolepis masudaensis, Mohnia yanamii, Mohnia sp., Neptunea sp., Neptunea (Barbitronia) cf. arthritica, "Trophonopsis uyemurai" = Neptunea (Trophonopsis)
Buccinum sp. Linnaeus 1758 true whelk
Ancistrolepis masudaensis 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 | |
Cyllene aff. pulchella snail
Reticunassa acutidentata snail | |
"Scalptia kurodai" = Trigonostoma (Scalptia)
"Scalptia kurodai" = Trigonostoma (Scalptia) snail | |
Ophiodermella ogurana turrid
Ophiodermella miyatensis turrid | |
Oenopota sp. Mörch 1852 cone shell
Propebela (Turritoma) yokoyamai cone shell | |
Suavodrillia declivis snail | |
Ithycythara sp. Woodring 1928 snail | |
"Noditerebra cf. tsuboiana" = Duplicaria
"Noditerebra cf. tsuboiana" = Duplicaria auger snail | |
Glossaulax didyma Röding 1798 moon snail
Euspira pila moon snail
Mammilla sp. Schumacher 1817 moon snail
Cryptonatica janthostoma Deshayes 1839 moon snail | |
Littorina (Littorina) brevicula periwinkle | |
Retusa sp. Brown 1827 snail | |
Acteocina insignis barrel-bubble | |
Syrnola sp. Adams 1860 snail
Turbonilla sp. Risso 1826 snail | |
Leucotina sp. Adams 1860 snail | |
Bivalvia | |
Acila (Truncacila) isignis divaricate nutclam | |
"Lucinoma annulata" = Lucinoma annulatum
"Lucinoma annulata" = Lucinoma annulatum Reeve 1850 clam | |
Myadora japonica clam | |
"Anisocorbula ventusta" = Corbula (Anisocorbula)
"Anisocorbula ventusta" = Corbula (Anisocorbula) clam | |
"Callista chinensis" = Callista (Callista) chinensis, "Veremolpa micra" = Timoclea (Veremolpa), "Phacosoma cf. tomikawensis" = Dosinia (Phacosoma), Mercenaria stimpsoni, Mercenaria chitaniana, "Protothaca tateiwai" = Leukoma, Pseudamiantis tauyensis
"Callista chinensis" = Callista (Callista) chinensis Holten 1802 venus clam
"Veremolpa micra" = Timoclea (Veremolpa) venus clam
"Phacosoma cf. tomikawensis" = Dosinia (Phacosoma) venus clam
Mercenaria stimpsoni quahog
Mercenaria chitaniana quahog
"Protothaca tateiwai" = Leukoma venus clam
Pseudamiantis tauyensis venus clam | |
"Spisula (Pseudocardium) sachalinensis" = Pseudocardium
"Spisula (Pseudocardium) sachalinensis" = Pseudocardium clam | |
"Felaniella usta" = Diplodonta
"Felaniella usta" = Diplodonta clam | |
"Clinocardium (Clinocardium) decoratum" = Clinocardium (Clinocardium) nuttallii, Dinocardium angustum
"Clinocardium (Clinocardium) decoratum" = Clinocardium (Clinocardium) nuttallii Conrad 1837 cockle
Dinocardium angustum cockle | |
"Megangulus zyonoensis" = Tellina (Megangulus)
"Megangulus zyonoensis" = Tellina (Megangulus) tellin clam | |
Anadara (Anadara) amicula, "Anadara (Scapharca) ommaensis" = Scapharca
"Anadara (Scapharca) ommaensis" = Scapharca clam | |
Anomia chinensis jingle | |
Mizuhopecten sp. Masuda 1963 scallop |