SK28, Imahorazawa: Sakmarian, Japan

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Strophomenata - Productida - Aulostegidae
Tazawa and Shintani 2015
(1 measurement)
Strophomenata - Productida - Linoproductidae
Terrakea sp. Booker 1929
Tazawa and Shintani 2015
Strophomenata - Orthotetida - Meekellidae
Strophomenata - Orthotetida - Derbyiidae
see common names

Geography
Country:Japan
Coordinates: 39.2° North, 141.6° East (view map)
Paleocoordinates:15.1° North, 144.1° East (Wright 2013)
Basis of coordinate:stated in text
Geographic resolution:outcrop
Time
Period: Permian Epoch: Cisuralian
Stage: Sakmarian 10 m.y. bin: Permian 1
Key time interval: Sakmarian
Age range of interval: 293.52 - 290.1 m.y. ago
Stratigraphy
Formation:Sakamotosawa
Stratigraphic resolution:group of beds
Stratigraphy comments: 20 m above the base of the Sakamotozawa Formation
Lithology and environment
Primary lithology:medium,brown,gray lithified sandstone
Lithology description: Gray to light-brown medium grained sandstone and light-gray coarse-grained sandstone
Environment:marine indet.
Taphonomy
Modes of preservation:mold/impression
Size of fossils:macrofossils
Collection methods and comments
Collection methods:field collection
Reason for describing collection:taxonomic analysis
Collection method comments: Repository: Niigata University
Metadata
Database number:138384
Authorizer:M. Clapham Enterer:M. Clapham
Research group:marine invertebrate
Created:2013-01-16 13:50:38 Last modified:2025-02-22 15:12:02
Access level:the public Released:2013-01-16 13:50:38
Creative Commons license:CC0
Reference information

Primary reference:
44305. T. Shintani. 2011. Orthotetoids from the Lower Permian (Sakmarian) of the Nagaiwa-Sakamotozawa area, South Kitakami Belt, northeast Japan. Science Reports, Niigata University (Geology) 26:73-90 [M. Clapham/M. Clapham]

Secondary references:

55984 J. I. Tazawa and T. Shintani. 2015. Early Permian (Sakmarian) brachiopods from the Nagaiwa-Sakamotozawa area, South Kitakami belt, northeastern Japan, part 3: Productidina. Science Reports, Niigata University (Geology) 30:39-55 [M. Clapham/M. Clapham]