Abashiri: Chattian, Japan

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Osteichthyes - Suliformes - Plotopteridae
1 specimen
Gastropoda - Turritellidae
Turritella sp. Lamarck 1799
Bivalvia - Protobranchia - Yoldiidae
Yoldia sp. Möller 1842
Bivalvia - Thraciida - Periplomatidae
Scaphopoda - Dentaliida - Dentaliidae
see common names

Geography
Country:Japan State/province:Hokkaido
Coordinates: 44.0° North, 144.1° East (view map)
Paleocoordinates:45.5° North, 140.3° East (Wright 2013)
Basis of coordinate:stated in text
Time
Period: Paleogene Epoch: Oligocene
Stage: Chattian 10 m.y. bin: Cenozoic 4
Key time interval: Chattian
Age range of interval: 27.3 - 23.04 m.y. ago
Stratigraphy
Formation:Tokoro
Stratigraphic resolution:member
Stratigraphy comments: late Oligocene
Lithology and environment
Primary lithology:fine,gray muddy sandstone
Includes fossils?Y
Environment:coastal indet.
Taphonomy
Modes of preservation:body,original phosphate
Size of fossils:macrofossils
Collection methods and comments
Reason for describing collection:taxonomic analysis
Metadata
Database number:120530
Authorizer:M. Uhen Enterer:M. Uhen
Research group:vertebrate
Created:2011-11-16 01:43:47 Last modified:2025-02-22 15:12:02
Access level:the public Released:2011-11-16 01:43:47
Creative Commons license:CC0
Reference information

Primary reference:
38523. K. Sakurai, M. Kimura, and T. A. Katoh. 2008. New penguin-like bird (Pelecaniformes; Plotopteridae) from the Late Oligocene Tokoro Formation, northeastern Hokkaido. Oryctos 7:83-94 [M. Uhen/M. Uhen]