Minowa Quarry, YZH section, Kuzuu, samples 45-58: Anisian, Japan

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Protozoa - Entactinaria - Palaeoscenidiidae
Protozoa - Entactinaria - Hindeosphaeridae
Pseudostylosphaera sp. Kozur and Mostler 1981
Pseudostylosphaera compacta (Nakaseko and Nishimura 1979)
Pseudostylosphaera longispinosa Kozur and Mostler 1981
Pseudostylosphaera japonica (Nakaseko and Nishimura 1979)
Pseudostylosphaera spinulosa (Nakaseko and Nishimura 1979)
Protozoa - Entactinaria - Eptingiidae
Eptingium sp. Dumitrica 1978
Eptingium nakasekoi Kozur and Mostler 1994
Cryptostephanidium sp. Dumitrica 1978
Cryptostephanidium japonicum (Nakaseko and Nishimura 1979)
Protozoa - Entactinaria - Multiarcusellidae
Tiborella florida (Nakaseko and Nishimura 1979)
Polycystinea - Nassellaria - Spongosilicarmigeridae
Polycystinea - Nassellaria - Ruesticyrtiidae
Paratriassocampe sp. Kozur and Mostler 1994
Annulotriassocampe campanilis Kozur and Mostler 1994
Polycystinea - Nassellaria - Poulpidae
Polycystinea - Spumellaria - Capnuchosphaeridae
see common names

Geography
Country:Japan State/province:Tochigi
Coordinates: 36.4° North, 139.6° East (view map)
Paleocoordinates:5.1° North, 137.9° East (Wright 2013)
Basis of coordinate:based on nearby landmark
Geographic resolution:small collection
Time
Period: Triassic Epoch: Middle Triassic
Stage: Anisian 10 m.y. bin: Triassic 2
Key time interval: Anisian
Age range of interval: 247 - 241.464 m.y. ago
Stratigraphy
Stratigraphic resolution:group of beds
Stratigraphy comments: 11 samples (YZH-45 - YZH-58), Tiborella florida zone
Lithology and environment
Primary lithology: lithified chert
Lithology description: gray bedded chert
Environment:basinal (siliceous)
Taphonomy
Modes of preservation:body
Size of fossils:microfossils
Collection methods and comments
Collection methods:field collection
Reason for describing collection:biostratigraphic analysis
Metadata
Database number:96064
Authorizer:W. Kiessling Enterer:U. Merkel
Research group:micropaleontology
Created:2010-05-11 05:43:46 Last modified:2025-02-22 15:12:02
Access level:the public Released:2010-05-11 05:43:46
Creative Commons license:CC0
Reference information

Primary reference:
32604. M. Ohtaka, Y. Aita, and T. Sakai. 1998. Middle Triassic radiolarian biostratigraphy of the bedded chert in the Minowa quarry, Kuzuu Town, Ashio Mountains. News of Osaka Micropaleontologists, Special Volume 11:95-113 [W. Kiessling/U. Merkel]