Tawa Rock Quarry: Late Campanian, Japan
collected by Y. Kanazawa 1986

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Osteichthyes
1 specimen
OMNH MV-94, a partial isolated dorsal vertebra
see common names

Geography
Country:Japan State/province:Kagawa
Coordinates: 34.2° North, 134.2° East (view map)
Paleocoordinates:40.7° North, 128.5° East (Wright 2013)
Basis of coordinate:estimated from map
Geographic resolution:outcrop
Time
Period: Cretaceous Epoch: Late Cretaceous
Stage: Campanian 10 m.y. bin: Cretaceous 7
Key time interval: Late Campanian
Age range of interval: 83.6 - 72.2 m.y. ago
Stratigraphy
Geological group:Izumi Formation:Hiketa
Stratigraphic resolution:bed
Stratigraphy comments: “Facies C” of the Hiketa Formation by Tsujino (2004)
Lithology and environment
Primary lithology:black siltstone
Secondary lithology: sandstone
Includes fossils?Y
Lithology description: "This block is associated with a black siltstone bed intercalated with turbidite sandstones, previously described as “Facies C” of the Hiketa Formation by Tsujino (2004)"
Environment:marine indet.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Collection methods:surface (float),field collection
Reason for describing collection:general faunal/floral analysis
Collectors:Y. Kanazawa Collection dates:1986
Collection method comments: Osaka Museum of Natural History
Metadata
Also known as:Tawa-Kanewari; Tawa Saisekijo, Sanuki
Database number:235741
Authorizer:P. Mannion Enterer:P. Mannion
Modifier:M. Carrano
Created:2024-07-29 06:40:48 Last modified:2025-09-16 15:46:53
Access level:the public Released:2024-07-29 06:40:48
Creative Commons license:CC0
Reference information

Primary reference:
89070. S. Hayashi, Y. Nakajima, Y. Tanaka, B. T. Breeden, III, Y. Kanazawa and C. Tsogtbaatar. 2024. A hadrosauroid vertebra from the Upper Cretaceous Izumi Group, Kagawa prefecture, Japan. Paleontological Research 28(4):442–451 [P. Mannion/P. Mannion/M. Carrano]