Nobe River: Piacenzian, Japan

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Coniferales - Cupressaceae
Angiospermae - Asterales - Menyanthaceae
Angiospermae - Saxifragales - Hamamelidaceae
Angiospermae - Fagales - Juglandaceae
Buliminidae
unclassified
Elphidiidae
Elphidium sp. Monfort 1808
Osteichthyes - Carnivora - Otariidae
1 specimen
Bivalvia - Protobranchia - Yoldiidae
Yoldia sp. Möller 1842
Bivalvia - Protobranchia - Nuculidae
Bivalvia - Pholadida - Myidae
Bivalvia - Lucinida - Lucinidae
Lucinoma annulata (Reeve 1850)
Bivalvia - Lucinida - Thyasiridae
Conchocele bisecta (Conrad 1849)
Bivalvia - Cardiida - Tellinidae
Macoma calcarea (Gmelin 1792)
Bivalvia - Cardiida - Cardiidae
Bivalvia - Venerida - Veneridae
Mercenaria sp. Schumacher 1817
Bivalvia - Arcida - Arcidae
Bivalvia - Arcida - Glycymerididae
Bivalvia - Pectinida - Pectinidae
Bivalvia - Mytilida - Mytilidae
Modiolus sp. (Lamarck 1801)
Gastropoda - Naticidae
Tectonatica sp. Sacco 1890
Gastropoda - Neogastropoda - Buccinidae
Gastropoda - Turritellidae
Gastropoda - Trochidae
see common names

Geography
Country:Japan State/province:Niigata
Coordinates: 37.3° North, 138.8° East (view map)
Paleocoordinates:37.1° North, 138.2° East (Wright 2013)
Basis of coordinate:stated in text
Geographic resolution:outcrop
Time
Period: Neogene Epoch: Pliocene
Stage: Piacenzian 10 m.y. bin: Cenozoic 6
Key time interval: Piacenzian
Age range of interval: 3.6 - 2.58 m.y. ago
Age estimate: 2.9 to 2.5 Ma (fission track)
Stratigraphy
Geological group:Uonuma
Stratigraphic resolution:formation
Stratigraphy comments: lowermost formation
Lithology and environment
Primary lithology: sandstone
Includes fossils?Y
Environment:coastal indet.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Reason for describing collection:general faunal/floral analysis
Metadata
Database number:101021
Authorizer:M. Uhen Enterer:M. Uhen
Research group:vertebrate
Created:2010-12-15 09:31:38 Last modified:2025-02-22 15:12:02
Access level:the public Released:2010-12-15 09:31:38
Creative Commons license:CC0
Reference information

Primary reference:
34517. H. Horikawa. 1981. On a new fossil sea-lion from the Uonuma Group (Plio-Pleistocene), Ojiya, Niigata Prefecture, Central Japan. Chikyu kagaku 35:159-178 [M. Uhen/M. Uhen]