Konori-hama, Osawa Fm, Onagawa-cho, Miyagi Prefecture: Aegean - Bithynian, Japan

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Cephalopoda - Phylloceratida - Palaeophyllitidae
(1 measurement)
(1 measurement)
Cephalopoda - Ceratitida - Danubitidae
Danubites sp. Mojsisovics 1893
(1 measurement)
(1 measurement)
see common names

Geography
Country:Japan
Coordinates: 38.4° North, 141.5° East (view map)
Paleocoordinates:6.3° North, 140.1° East (Wright 2013)
Basis of coordinate:estimated from map
Geographic resolution:outcrop
Time
Period: Triassic Epoch: Middle Triassic
Stage: Anisian 10 m.y. bin: Triassic 2
Key time interval: Aegean - Bithynian
Age range of interval: 247 - 244.4 m.y. ago
Stratigraphy
Formation:Osawa
Stratigraphic resolution:group of beds
Stratigraphy comments: Listed as uppermost Scythian, Prohungaritian ammonite stage or Leiophyllites zone, but ammonoids are more typical of early Anisian.
Lithology and environment
Primary lithology:black lithified "shale"
Environment:marine indet.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Collection methods:field collection
Reason for describing collection:taxonomic analysis
Metadata
Database number:101744
Authorizer:M. Clapham Enterer:M. Clapham
Modifier:M. Clapham Research group:marine invertebrate
Created:2011-01-01 15:09:34 Last modified:2025-02-22 15:12:02
Access level:the public Released:2011-01-01 15:09:34
Creative Commons license:CC0
Reference information

Primary reference:

33438. Y. Bando. 1970. Lower Triassic ammonoids from the Kitakami Massif. Transactions and Proceedings of the Paleontological Society of Japan, N.S. 79:337-354 [M. Clapham/M. Clapham]