Mt. Ashibetsudake, Hokkaido: Late Aptian, Japan

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Anthozoa - Scleractinia
Bivalvia - Ostreida - Gryphaeidae
Bivalvia - Hippuritida - Requieniidae
Bivalvia - Hippuritida - Polyconitidae
Gastropoda - Heterostropha - Nerineidae
unclassified
Rhodophyceae - Solenoporaceae
Pycnoporidium sp. Yabe and Toyama 1928
Florideophyceae - Hapalidiales - Corallinophycidae
Hormogoneae - Oscillatoriales - Girvanellaceae
see common names

Geography
Country:Japan
Coordinates: 43.2° North, 142.2° East (view map)
Paleocoordinates:51.4° North, 149.8° East (Wright 2013)
Basis of coordinate:estimated from map
Geographic resolution:local area
Time
Period: Cretaceous Epoch: Early Cretaceous
10 m.y. bin: Cretaceous 2-3
Key time interval: Late Aptian
Age range of interval: 119.57 - 113.2 m.y. ago
Stratigraphy
Geological group:Lower Yezo
Stratigraphic resolution:group of beds
Lithology and environment
Primary lithology: lithified wackestone
Secondary lithology: lithified packstone
Includes fossils?Y
Includes fossils?Y
Environment:reef, buildup or bioherm
Taphonomy
Size of fossils:macrofossils,mesofossils
Collection methods and comments
Collection methods:peel or thin section,field collection
Reason for describing collection:general faunal/floral analysis
Metadata
Also known as:Reef 1708
Database number:49990
Authorizer:W. Kiessling Enterer:W. Kiessling
Modifier:W. Kiessling Research group:marine invertebrate
Created:2005-05-04 03:32:49 Last modified:2025-02-22 15:12:02
Access level:the public Released:2005-05-04 03:32:49
Creative Commons license:CC0
Reference information

Primary reference:
13426. S. Sano. 1995. Litho- and biofacies of Early Cretaceous rudist-bearing carbonate sediments in northeastern Japan. Sedimentary Geology 99:179-189 [W. Kiessling/W. Kiessling/W. Kiessling]