YTZ-1, Torinoko Block (Jurassic of Japan)

Where: Japan (36.8° N, 140.3° E: paleocoordinates 44.4° N, 143.1° E)

• coordinate estimated from map

• hand sample-level geographic resolution

When: Late/Upper Tithonian (150.8 - 145.0 Ma)

• SGM (sandstone-gray mudstone) unit

• bed-level stratigraphic resolution

Environment/lithology: marine; lithified shale

• dark green shale

Size class: microfossils

Primary reference: 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]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 131668: authorized by Wolfgang Kiessling, entered by Uta Merkel on 27.07.2012

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Protozoa
 Spumellaria - Orbiculiformidae
? Orbiculiforma kanayamaensis
? Orbiculiforma kanayamaensis Mizutani 1981 radiolarian
 Actinommacea - Xiphostylidae
Triactoma blakei
Triactoma blakei Pessagno 1977 radiolarian
 Entactinaria - Saturnalidae
Acanthocircus suboblongus
Acanthocircus suboblongus Yao 1972 radiolarian
 Nassellaria - Williriedellidae
Williriedellum crystallinum, Zhamoidellum ovum
Williriedellum crystallinum Dumitrica 1970 radiolarian
Zhamoidellum ovum Dumitrica 1970 radiolarian
 Nassellaria - Xitidae
Xitus gifuensis
Xitus gifuensis Mizutani 1981 radiolarian
 Nassellaria - Eucyrtidiidae
Pseudoeucyrtis levis, Pseudoeucyrtis reticularis, Stichocapsa praepulchella, Stichomitra "sp. A", Solenotryma ichikawai
Pseudoeucyrtis levis Hori 1999 radiolarian
Pseudoeucyrtis reticularis Matsuoka and Yao 1985 radiolarian
Stichocapsa praepulchella Hori 1999 radiolarian
Stichomitra "sp. A" Cayeux 1897 radiolarian
Solenotryma ichikawai Matsuoka and Yao 1985 radiolarian
 Nassellaria - Pseudodictyomitridae
Pseudodictyomitra leptoconica, Pseudodictyomitra carpatica, Loopus primitivus
Pseudodictyomitra leptoconica Foreman 1973 radiolarian
Pseudodictyomitra carpatica Lozyniak 1969 radiolarian
Loopus primitivus Matsuoka and Yao 1985 radiolarian
 Nassellaria - Archaeodictyomitridae
Thanarla brouweri, Archaeodictyomitra excellens, Archaeodictyomitra minoensis, Archaeodictyomitra apiarium
Thanarla brouweri Tan Sin Hok 1927 radiolarian
Archaeodictyomitra excellens Tan Sin Hok 1927 radiolarian
Archaeodictyomitra minoensis Mizutani 1981 radiolarian
Archaeodictyomitra apiarium Rüst 1885 radiolarian
 Nassellaria - Unumidae
Protunuma japonicus
Protunuma japonicus Matsuoka and Yao 1985 radiolarian
 Nassellaria - Eucyrtidiellidae
Eucyrtidiellum pyramis
Eucyrtidiellum pyramis Aita 1986 radiolarian
 Nassellaria - Sethocapsidae
Sethocapsa hexagona
Sethocapsa hexagona Hori 1999 radiolarian
 Nassellaria - Canoptidae
Cinguloturris carpatica, Cinguloturris cylindra
Cinguloturris carpatica Dumitrica and Mello 1982 radiolarian
Cinguloturris cylindra Kemkin and Rudenko 1993 radiolarian
 Nassellaria - Parvicingulidae
Tethysetta dhimenaensis, Tethysetta boesii, Wrangellium okamurai, Mirifusus dianae, "Tethysetta mashitaensis" = Parvicingula mashitaensis, Ristola altissima
Tethysetta boesii Parona 1890 radiolarian
Wrangellium okamurai Mizutani 1981 radiolarian
Mirifusus dianae radiolarian
subsp. minor
"Tethysetta mashitaensis" = Parvicingula mashitaensis Mizutani 1981 radiolarian
Ristola altissima Rüst 1885 radiolarian
 Nassellaria - Spongocapsulidae
Spongocapsula ovum, Spongocapsula conica
Spongocapsula ovum Hori 1999 radiolarian
Spongocapsula conica Hori 1999 radiolarian
 Nassellaria - Ultranaporidae
Napora sp.
Napora sp. Pessagno 1977 radiolarian