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