YTZ-1, Torinoko Block: Late/Upper Tithonian, Japan
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Protozoa
- Nassellaria
- Eucyrtidiidae
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Pseudoeucyrtis levis
Hori 1999
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Pseudoeucyrtis reticularis
Matsuoka and Yao 1985
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Stichocapsa praepulchella
Hori 1999
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Stichomitra informal sp. A
Cayeux 1897
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Solenotryma ichikawai
Matsuoka and Yao 1985
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Protozoa
- Nassellaria
- Xitidae
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Xitus gifuensis
Mizutani 1981
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Protozoa
- Nassellaria
- Pseudodictyomitridae
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Loopus primitivus
(Matsuoka and Yao 1985)
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Pseudodictyomitra carpatica
(Lozyniak 1969)
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Pseudodictyomitra leptoconica
(Foreman 1973)
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Protozoa
- Nassellaria
- Ultranaporidae
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Napora sp.
Pessagno 1977
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Protozoa
- Nassellaria
- Archaeodictyomitridae
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Thanarla brouweri
(Tan Sin Hok 1927)
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Archaeodictyomitra minoensis
(Mizutani 1981)
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Archaeodictyomitra apiarium
(Rüst 1885)
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Archaeodictyomitra excellens
(Tan Sin Hok 1927)
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Protozoa
- Nassellaria
- Unumidae
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Protunuma japonicus
Matsuoka and Yao 1985
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Protozoa
- Nassellaria
- Spongocapsulidae
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Spongocapsula conica
Hori 1999
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Spongocapsula ovum
Hori 1999
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Protozoa
- Nassellaria
- Parvicingulidae
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Tethysetta dhimenaensis
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Tethysetta boesii
(Parona 1890)
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Wrangellium okamurai
(Mizutani 1981)
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Ristola altissima
(Rüst 1885)
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Tethysetta mashitaensis
(Mizutani 1981)
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| original and current combination Parvicingula mashitaensis | ||||||||||
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Mirifusus dianae
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| subsp. minor | ||||||||||
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Protozoa
- Nassellaria
- Canoptidae
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Cinguloturris carpatica
Dumitrica and Mello 1982
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Cinguloturris cylindra
Kemkin and Rudenko 1993
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Protozoa
- Nassellaria
- Sethocapsidae
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Sethocapsa hexagona
Hori 1999
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Protozoa
- Nassellaria
- Williriedellidae
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Zhamoidellum ovum
Dumitrica 1970
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Williriedellum crystallinum
Dumitrica 1970
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Protozoa
- Nassellaria
- Eucyrtidiellidae
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Eucyrtidiellum pyramis
(Aita 1986)
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Protozoa
- Entactinaria
- Saturnalidae
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Acanthocircus suboblongus
(Yao 1972)
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Protozoa
- Xiphostylidae
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Triactoma blakei
(Pessagno 1977)
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Protozoa
- Spumellaria
- Orbiculiformidae
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? Orbiculiforma kanayamaensis
Mizutani 1981
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| see common names | ||||||||||
Geography
| Country: | Japan |
| Coordinates: | 36.8° North, 140.3° East (view map) |
| Paleocoordinates: | 44.4° North, 143.1° East |
| Basis of coordinate: | estimated from map |
| Geographic resolution: | hand sample |
Time
| Period: | Jurassic | Epoch: | Late/Upper Jurassic |
| Stage: | Tithonian | 10 m.y. bin: | Jurassic 6 |
| Key time interval: | Late/Upper Tithonian | ||
| Age range of interval: | 146.30000 - 145.00000 m.y. ago |
Stratigraphy
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: SGM (sandstone-gray mudstone) unit | |||||
Lithology and environment
| Primary lithology: | lithified "shale" |
| Lithology description: dark green shale | |
| Environment: | marine indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | microfossils |
Collection methods and comments
| Collection methods: | field collection |
| Reason for describing collection: | taxonomic analysis |
Metadata
| Database number: | 131668 | ||
| Authorizer: | W. Kiessling | Enterer: | U. Merkel | Research group: | micropaleontology |
| Created: | 2012-07-27 19:02:47 | Last modified: | 2012-07-27 04:02:47 |
| Access level: | the public | Released: | 2012-07-27 19:02:47 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 42460. | N. Hori. 1999. Latest Jurassic radiolarians from the northeastern part of the Torinoko Block, Yamizo Mountains, central Japan. Science Reports of the Institute of Geoscience University of Tsukuba, Section B: Geological Sciences 20:47-114 [W. Kiessling/U. Merkel] |