Kinshozan quarry, C. amicula-C. gifuensis zone, Akasaka, Gifu Prefecture: Wordian, Japan

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Chondrichthyes - Hybodontiformes
scales
Lissodus sp. Brough 1935
Chondrichthyes - Ctenacanthiformes - Ctenacanthidae
see common names

Geography
Country:Japan
Coordinates: 35.4° North, 136.6° East (view map)
Paleocoordinates:5.5° North, 132.4° East (Wright 2013)
Basis of coordinate:estimated from map
Geographic resolution:outcrop
Time
Period: Permian Epoch: Guadalupian
Stage: Wordian 10 m.y. bin: Permian 3
Key time interval: Wordian
Age range of interval: 266.9 - 264.28 m.y. ago
Stratigraphy
Formation:Akasaka
Stratigraphic resolution:group of beds
Stratigraphy comments: Middle Member. Presence of C. gifuensis (=Gifuella gifuensis) suggests correlation with Neoschwagerina haydeni subzone, in the upper part of the Neoschwagerina-Verbeekina zone at Akasaka.
Lithology and environment
Primary lithology:black lithified carbonaceous "limestone"
Lithology description: Bedded black coaly limestone
Environment:carbonate indet.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Collection methods:chemical,field collection
Reason for describing collection:taxonomic analysis
Collection method comments: Processed using a 5% formic acid solution
Metadata
Database number:117864
Authorizer:M. Clapham Enterer:M. Clapham
Modifier:M. Clapham Research group:vertebrate
Created:2011-09-28 01:21:47 Last modified:2025-02-22 15:12:02
Access level:the public Released:2011-09-28 01:21:47
Creative Commons license:CC0
Reference information

Primary reference:
37873. H. Yamagishi and T. Fujimoto. 2011. Chondrichthyan remains from the Akasaka limestone formation (Middle Permian) of Gifu Prefecture, central Japan. Bulletin of the Kanagawa Prefectural Museum (Natural Sciences) 40:1-6 [M. Clapham/M. Clapham/M. Clapham]