Torinosu-type limestone, OU-12 (Jurassic of Japan)

Where: Japan (33.8° N, 134.3° E: paleocoordinates 40.9° N, 136.9° E)

• coordinate based on nearby landmark

• hand sample-level geographic resolution

When: Hinodani Formation, Tithonian (152.1 - 145.0 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: basinal (siliceous); lithified, ooidal, gray limestone

• dark gray to black limestone, assignable to bioclast wackestone and ooid grainstone

Size class: microfossils

Preservation: original silica

Collection methods: chemical, acetic, hydrochloric, sieve,

Primary reference: K. Sashida and H. Uematsu. 1996. Late Jurassic radiolarians from the Torinosu-type limestone embedded in the Early Cretaceous Hinodani Formation of the northern Shimanto Terrane, Shikoku, Japan. Science Reports of the Institute of Geoscience, University of Tsukuba. Section B: Geological Sciences 17:39-69 [W. Kiessling/M. Riess/M. Uhen]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 53905: authorized by Wolfgang Kiessling, entered by Martin Riess on 16.09.2005

Creative Commons license: CC BY (attribution)

Taxonomic list

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Protozoa
 Actinommacea - Xiphostylidae
? Triactoma sp., Triactoma blakei
? Triactoma sp. Rüst 1885 radiolarian
Triactoma blakei Pessagno 1977 radiolarian
 Nassellaria - Sethocapsidae
Sethocapsa "sp. A", Sethocapsa "sp. B", ? Sethocapsa sp., ? Sethocapsa nakaensis
Sethocapsa "sp. A" Haeckel 1881 radiolarian
Sethocapsa "sp. B" Haeckel 1881 radiolarian
? Sethocapsa sp. Haeckel 1881 radiolarian
? Sethocapsa nakaensis Sashida and Uematsu 1996 radiolarian
 Nassellaria - Canoptidae
Cinguloturris carpatica
Cinguloturris carpatica Dumitrica and Mello 1982 radiolarian
 Nassellaria - Parvicingulidae
Mirifusus dianae, Parvicingula cf. boesi, Parvicingula sp.
Mirifusus dianae radiolarian
Parvicingula sp. Pessagno 1977 radiolarian
 Nassellaria - Spongocapsulidae
Spongocapsula perampla, Spongocapsula palmerae
Spongocapsula perampla Rüst 1885 radiolarian
Spongocapsula palmerae Pessagno 1977 radiolarian
 Nassellaria - Syringocapsidae
Syringocapsa sp., Syringocapsa aff. limatum, Podobursa sp., ? Podobursa sp., Podobursa triacantha
Syringocapsa sp. Neviani 1900 radiolarian
Syringocapsa aff. limatum Foreman 1973 radiolarian
Podobursa sp. Wisniowski 1889 radiolarian
? Podobursa sp. Wisniowski 1889 radiolarian
Podobursa triacantha Fischli 1916 radiolarian
 Nassellaria - Eucyrtidiidae
? Stichomitra takanoensis
? Stichomitra takanoensis Aita 1987 radiolarian
 Nassellaria - Xitidae
Xitus sp., Xitus cf. spicularius
Xitus sp. Pessagno 1977 radiolarian
Xitus cf. spicularius Aliev 1961 radiolarian
 Nassellaria - Ultranaporidae
Napora "sp. A", Napora "sp. B", Napora bukryi
Napora "sp. A" Pessagno 1977 radiolarian
Napora "sp. B" Pessagno 1977 radiolarian
Napora bukryi Pessagno 1977 radiolarian
 Entactinaria - Saturnalidae
Acanthocircus aff. suboblongus, Acanthocircus trizonalis
Acanthocircus aff. suboblongus Yao 1972 radiolarian
Acanthocircus trizonalis Rüst 1898 radiolarian
 Entactinaria - Eptingiidae
Perispyridium ordinarium
Perispyridium ordinarium Pessagno 1977 radiolarian
 Radiolaria -
? Spumellaria indet.
? Spumellaria indet. Ehrenberg 1875 radiolarian
 Spumellaria - Angulobracchiidae
? Angulobracchia sp., Paronaella "sp. A", Paronaella "sp. B", Bistarkum sp.
? Angulobracchia sp. Baumgartner 1980 radiolarian
Paronaella "sp. A" Pessagno 1971 radiolarian
Paronaella "sp. B" Pessagno 1971 radiolarian
Bistarkum sp. Yeh 1987 radiolarian
 Spumellaria - Emiluviidae
Emiluvia orea
Emiluvia orea Baumgartner 1980 radiolarian
 Spumellaria - Patulibracchiidae
Homoeoparonaella elegans
Homoeoparonaella elegans Pessagno 1977 radiolarian
 Spumellaria - Pseudoaulophacidae
? Alievium sp., Alievium helenae
? Alievium sp. Pessagno 1972 radiolarian
Alievium helenae Schaaf 1981 radiolarian
 Spumellaria - Tritrabidae
Tritrabs exotica, Tritrabs ewingi
Tritrabs exotica Pessagno 1977 radiolarian
Tritrabs ewingi Pessagno 1977 radiolarian
 Spumellaria - Orbiculiformidae
Orbiculiforma "sp. A", Orbiculiforma "sp. B"
Orbiculiforma "sp. A" Pessagno 1973 radiolarian
Orbiculiforma "sp. B" Pessagno 1973 radiolarian
 Spumellaria - Archaeospongoprunidae
Archaeospongoprunum imlayi
Archaeospongoprunum imlayi Pessagno 1977 radiolarian
 Spumellaria - Parvivaccidae
Acastea diaphorogona, Acastea acer, ? Praeconosphaera sp.
Acastea diaphorogona Foreman 1973 radiolarian
Acastea acer Yang 1993 radiolarian
? Praeconosphaera sp. Yang 1993 radiolarian
 Spumellaria - Hagiastridae
Higumastra sp., Tetratrabs sp.
Higumastra sp. Baumgartner 1980 radiolarian
Tetratrabs sp. Baumgartner 1980 radiolarian
 Radiolaria - Actinommidae
? Actinomma "sp. A", ? Actinomma "sp. B", ? Actinomma "sp. C", Actinomma tochidaniensis, Actinomma matsuokai, Actinomma ishidai
? Actinomma "sp. A" Haeckel 1862 radiolarian
? Actinomma "sp. B" Haeckel 1862 radiolarian
? Actinomma "sp. C" Haeckel 1862 radiolarian
Actinomma tochidaniensis Sashida and Uematsu 1996 radiolarian
Actinomma matsuokai Sashida and Uematsu 1996 radiolarian
Actinomma ishidai Sashida and Uematsu 1996 radiolarian