Kamikatetu, Kikai-zima: Middle Pleistocene, Japan

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Echinoidea - Cidaroida - Cidaridae
Prionocidaris bispinosa (Lamarck 1816)
Nisiyama 1966
Nisiyama 1966
Rhynchonellata - Rhynchonellida - Basiliolidae
Neohemithyris lucida (Gould 1860)
Rhynchonellata - Terebratulida - Terebratulidae
Gryphus hanzawai Yabe and Hatai 1935
Rhynchonellata - Terebratulida - Frenulinidae
Jolonica ryukyuensis Yabe and Hatai 1935
Pictothyris picta (Dillwyn 1817)
Rhynchonellata - Terebratulida - Dallinidae
Japanithyris nipponensis Yabe and Hatai 1935
Lingulata - Lingulida - Discinidae
Discinisca kamikatetuensis Yabe and Hatai 1935
see common names

Geography
Country:Japan
Coordinates: 28.3° North, 129.9° East (view map)
Paleocoordinates:
Basis of coordinate:based on nearby landmark
Geographic resolution:outcrop
Time
Period: Quaternary Epoch: Pleistocene
Stage: Chibanian 10 m.y. bin: Cenozoic 6
Key time interval: Middle Pleistocene
Age range of interval: 0.774 - 0.129 m.y. ago
Stratigraphy
Formation:Wan
Stratigraphic resolution:group of beds
Stratigraphy comments: From the "Ryukyu Limestone." According to Humblet et al. (2009), The topography of Kikai-jima is characterised by three main Pleistocene terraces: Hyakunodai (180–225 m), Nagamine (120–130 m), and Kawamine (20–80 m) (Nakagawa, 1969). The Kawamine terrace age has been measured by electron spin resonance (ESR) dating technique as 0.39–0.65 Ma (Loc. 4 in Ikeda et al., 1991).
Lithology and environment
Primary lithology: unlithified grainstone
Environment:reef, buildup or bioherm
Geology comments: Fore-reef in excess of 50 meters deep
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Reason for describing collection:taxonomic analysis
Metadata
Database number:190826
Authorizer:M. Clapham, M. Uhen Enterer:M. Clapham, M. Uhen
Research group:marine invertebrate
Created:2017-12-18 23:32:16 Last modified:2025-02-22 15:12:02
Access level:the public Released:2017-12-18 23:32:16
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]