Yubari Area, Mikasa Sandstone, Hokkaido: Turonian, Japan

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Bivalvia - Myalinida - Inoceramidae
Inoceramus (Inoceramus) angulosus
Bivalvia - Arcida - Glycymerididae
Glycymeris (Glycymerita) hokkaidoensis (Yabe and Nagao 1928)
Bivalvia - Cardiida - Tancrediidae
Meekia hokkaidoana
Bivalvia - Cardiida - Veneridae
Aphrodina pseudoplana
Bivalvia - Trigoniida - Trigoniidae
Apiotrigonia (Apiotrigonia) minor
Bivalvia - Trigoniida - Megatrigoniidae
Pterotrigonia (Acanthotrigonia) longiloba
Bivalvia - Trigoniida - Myophorellidae
Steinmanella (Yeharella) lymani
see common names

Geography
Country:Japan State/province:Ishikari
Coordinates: 43.0° North, 142.0° East (view map)
Paleocoordinates:51.1° North, 134.7° East
Basis of coordinate:estimated from map
Geographic resolution:local area
Time
Period:Cretaceous Epoch:Late/Upper Cretaceous
Stage:Turonian 10 m.y. bin:Cretaceous 6
Key time interval:Turonian
Age range of interval:93.90000 - 89.80000 m.y. ago
Stratigraphy
Geological group:Middle Yezo Formation:Mikasa Sandstone
Stratigraphic resolution:formation
Lithology and environment
Primary lithology:fine sandstone
Secondary lithology: mudstone
Environment:foreshore
Taphonomy
Modes of preservation:cast,mold/impression
Size of fossils:macrofossils
Collection methods and comments
Collection methods:survey of museum collection
Reason for describing collection:taxonomic analysis
Metadata
Database number:39669
Authorizer:M. Aberhan Enterer:S. Nurnberg
Modifier:S. Nurnberg Research group:marine invertebrate
Created:2004-06-02 10:25:33 Last modified:2004-06-28 08:16:15
Access level:the public Released:2004-06-02 10:25:33
Creative Commons license:CC BY
Reference information

Primary reference:
10664. I. Hayami. 1975. A systematic survey of the Mesozoic Bivalvia from Japan. The University Museum, The University of Tokyo, Bulletin (10) [M. Aberhan/S. Nurnberg/S. Nurnberg]