Miyako Area, Tanohata Formation, Honshu: Aptian, Japan

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Bivalvia - Pectinida - Neitheidae
Neithea (Neithea) ficalhoi (Choffat 1888)
Bivalvia - Pectinida - Spondylidae
Spondylus (Spondylus) decoratus
Bivalvia - Ostreida - Gryphaeidae
Amphidonte (Amphidonte) subhaliotoidea
Bivalvia - Arcida - Glycymerididae
Glycymeris (Hanaia) densilineata
Bivalvia - Trigoniida - Megatrigoniidae
Pterotrigonia (Pterotrigonia) hokkaidoana
Bivalvia - Pholadomyida - Pholadomyidae
Pholadomya (Bucardiomya) subpedelnalis
Bivalvia - Cardiida - Veneridae
Nagaoella corrugata
Bivalvia - Carditida - Astartidae
Opis (Opis) nakanoi
Bivalvia - Carditida - Carditidae
Ludbrookia cf. tenuicosta
see common names

Geography
Country:Japan State/province:Iwate
Coordinates: 39.6° North, 141.8° East (view map)
Paleocoordinates:52.4° North, 141.6° East
Basis of coordinate:estimated from map
Geographic resolution:local area
Time
Period:Cretaceous Epoch:Early/Lower Cretaceous
Stage:Aptian 10 m.y. bin:Cretaceous 3
Key time interval:Aptian
Age range of interval:121.40000 - 113.00000 m.y. ago
Stratigraphy
Geological group:Miyako Formation:Tanohata
Stratigraphic resolution:formation
Lithology and environment
Primary lithology: calcareous sandstone
Environment:marine indet.
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:40213
Authorizer:M. Aberhan Enterer:S. Nurnberg
Modifier:S. Nurnberg Research group:marine invertebrate
Created:2004-06-20 03:35:30 Last modified:2004-06-28 10:39:25
Access level:the public Released:2004-06-20 03:35:30
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]