Maizuru Zone, Oro Formation, Honshu: Induan - Olenekian, Japan

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Bivalvia - Nuculanida - Malletiidae
Palaeoneilo cf. elliptica praecursor
Bivalvia - Nuculanida - Nuculanidae
Nuculana (Dacryomya) nogamii
subsp. yakunoensis and subsp. nogamii
Bivalvia - Ostreida - Pinnidae
Pinna (Pinna) muikadaniensis
Bivalvia - Ostreida - Pteriidae
"Pecten" aff. sojalis Wittenburg 1908
Bivalvia - Pectinida - Hunanopectinidae
? Leptochondria aff. virgalensis Wittenburg 1908
Bivalvia - Pectinida - Limidae
Mysidioptera circularis
Bivalvia - Pectinida - Entoliidae
Entolium cf. microtis (Bittner 1899)
Entolium cf. discites (Schlotheim 1820)
see common names

Geography
Country:Japan State/province:Fukui
Coordinates: 35.5° North, 135.3° East (view map)
Paleocoordinates:35.0° North, 111.8° East
Basis of coordinate:estimated from map
Geographic resolution:local area
Time
Period: Triassic Epoch: Early Triassic
Stage: Induan - Olenekian 10 m.y. bin: Triassic 1
Key time interval: Induan - Olenekian
Age range of interval: 251.902 - 247.2 m.y. ago
Stratigraphy
Geological group:Yakuno Formation:Oro
Stratigraphic resolution:formation
Stratigraphy comments: Skytian
Lithology and environment
Primary lithology: "siliciclastic"
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:39972
Authorizer:M. Aberhan Enterer:S. Nurnberg
Modifier:S. Nurnberg Research group:marine invertebrate
Subset of collection #:40107
Created:2004-06-13 05:34:51 Last modified:2004-06-28 09:15:20
Access level:the public Released:2004-06-13 05:34:51
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]