Nagata, Kamo-gun, Izu Province: Piacenzian, Japan

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Echinoidea - Camarodonta - Toxopneustidae
Nisiyama 1966
Rhynchonellata - Terebratulida - Cancellothyrididae
Terebratulina iduensis n. sp. Hatai 1936
Rhynchonellata - Terebratulida - Frenulinidae
see common names

Geography
Country:Japan State/province:Shinozuka
Coordinates: 34.7° North, 139.0° East (view map)
Paleocoordinates:34.6° North, 138.4° 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
Stratigraphy
Geological group:Shirahama Formation:Harada
Stratigraphic resolution:group of beds
Stratigraphy comments: The nannofossil assemblage from the Harada Formation in the upper part of this group is characterized by the occurrence of Pseudoemiliania cf. lacunosa, without Reticulofenestra pseudoumbilica and Gephyrocapsa spp. (Okada, 1987). According to Blow (1969) and Okada and Bukry (1980), this group belongs to zones N19 and CN12 (early Piacenzian), according to Akimoto et al. (2012). Utagawa et al. (2015) dated andesite in the underlying Suzaki Formation at 3.62 +/- 0.16 Ma by K-Ar.
Lithology and environment
Primary lithology:"cross stratification",tuffaceous poorly lithified calcareous sandstone
Environment:carbonate indet.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Reason for describing collection:taxonomic analysis
Metadata
Also known as:IGPS loco no. So-13
Database number:190824
Authorizer:M. Clapham, M. Uhen Enterer:M. Clapham, M. Uhen
Modifier:M. Uhen Research group:marine invertebrate
Created:2017-12-18 23:22:18 Last modified:2025-02-22 15:12:02
Access level:the public Released:2017-12-18 23:22:18
Creative Commons license:CC0
Reference information

Primary reference:
64049. K. M. Hatai. 1940. The Cenozoic Brachiopoda of Japan. Science Reports, Tohoku Imperial University, Series 2 20:1-413 [M. Clapham/M. Clapham]

Secondary references:

61680 S. Nisiyama. 1966. The echinoid fauna from Japan and adjacent regions, Part I. Palaeontological Society of Japan Special Papers 11:1-277 [M. Uhen/B. Shipps/M. Uhen]