Loc. 5, Iwami River [Tentokuji Fm] (Pliocene of Japan)

Where: Japan (39.8° N, 140.4° E)

• Paleocoordinates: 39.6° N, 139.5° E (Wright 2013)

• coordinate based on nearby landmark

• outcrop-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 "lower" member of the formation, near the based of the section.

• bed-level stratigraphic resolution

Environment/lithology: coastal; poorly lithified siltstone

• ENVIRONMENT: Both cold- and warm-water species found. Shallow warm-water currents over the cold-water mass is suggested.
• SPECIFIC LITHOLOGY: Siltstone. LITHIFICATION: Poorly-lithified, based on figured specimens.

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 97081: authorized by Austin Hendy, entered by Austin Hendy on 17.07.2010

Creative Commons license: CC0 (CC0)

Taxonomic list

• COVERAGE: Exhaustive of mollusca. NOMENCLATURE: Not an authoritative publication, but with modern nomenclature and species-resolution identifications.
Show authors, comments, and common names
Bivalvia
 Nuculida - Nuculidae
Acila (Acila) cf. vigilia
Acila (Acila) cf. vigilia Schenck 1936 divaricate nutclam
 Nuculanida - Malletiidae
Malletia inermis