new trilobite collection, boulder near Gomi Quarry: Ludlow, Japan
collected by Y. Sako, T. Mizobuchi

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Artiopoda - Lichida - Lichidae
see common names

Geography
Country:Japan State/province:Skikoku County:Kôchi Prefecture
Coordinates: 33.5° North, 133.2° East (view map)
Paleocoordinates:
Basis of coordinate:estimated from map
Geographic resolution:outcrop
Time
Period: Silurian Epoch: Ludlow
10 m.y. bin: Silurian 2
Key time interval: Ludlow
Age range of interval: 426.7 - 422.7 m.y. ago
Stratigraphy
Stratigraphy comments: Cerauroides orientalis horizon, in stage G3 (Early Ludlovian)
Lithology and environment
Primary lithology: lithified "reef rocks"
Lithology description: limestone reef breccia with red shale
Environment:reef, buildup or bioherm
Geology comments: submarine talus deposits along the outer slope of the wave resistant reef front [redeposited]
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Collection methods:surface (in situ),field collection
Reason for describing collection:taxonomic analysis
Collectors:Y. Sako, T. Mizobuchi
Metadata
Database number:188693
Authorizer:M. Hopkins Enterer:M. Hopkins
Modifier:M. Hopkins Research group:marine invertebrate
Created:2017-09-13 16:15:02 Last modified:2025-02-22 15:12:02
Access level:the public Released:2017-09-13 16:15:02
Creative Commons license:CC0
Reference information

Primary reference:
63330. T. Kobayashi and T. Hamada. 1985. Additional Silurian trilobites to the Yokokura-Yama fauna from Shikoku, Japan. Transactions and Proceedings of the Paleontological Society of Japan, N.S. 139:206-217 [M. Hopkins/M. Hopkins]