Katsuyama (UF) Section, Inuyama, Kb13 (Jurassic of Japan)

Where: Japan (35.4° N, 136.9° E: paleocoordinates 46.9° N, 146.7° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Early/Lower Jurassic (201.4 - 174.7 Ma)

• bed-level stratigraphic resolution

Environment/lithology: basinal (siliceous); lithified chert and lithified shale

• rythmically alternating sequence of light red-brown chert and shale beds

Size class: microfossils

Preservation: original silica

Primary reference: R. Hori. 1992. Radiolarian Biostratigraphy at the Triassic/Jurassic Period Boundary in Bedded Cherts from the Inuyama Area, Central Japan. Journal of Geosciences, Osaka City University 35(4):53-65 [J. Pálfy/A. Kocsis]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 120138: authorized by József Pálfy, entered by Adam Kocsis on 08.11.2011

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Protozoa
 Nassellaria - Eucyrtidiidae
? Gigi sp., Gigi aff. fustis
? Gigi sp. De Wever 1982 radiolarian
Gigi aff. fustis De Wever 1982 radiolarian
 Nassellaria - Hsuidae
? Parahsuum sp., Parahsuum sp., Parahsuum simplum, Parahsuum ovale
? Parahsuum sp. Yao 1982 radiolarian
Parahsuum sp. Yao 1982 radiolarian
Parahsuum simplum Yao 1982 radiolarian
Parahsuum ovale Hori and Yao 1988 radiolarian
 Nassellaria - Farcidae
Farcus sp.
Farcus sp. Pessagno et al. 1986 radiolarian
 Nassellaria - Parvicingulidae
Dictyomitrella "sp. C"
Dictyomitrella "sp. C" Haeckel 1887 radiolarian
sensu Yao, 1982
 Nassellaria - Syringocapsidae
? Katroma sp., Syringocapsa "sp. B", Syringocapsa coliforme
? Katroma sp. Pessagno and Poisson 1981 radiolarian
Syringocapsa "sp. B" Neviani 1900 radiolarian
sensu Yao
Syringocapsa coliforme Hori 1988 radiolarian
 Nassellaria - Ultranaporidae
Bipedis yaoi, Bipedis japonicus
Bipedis yaoi Gorican et al. 2006 radiolarian
originally mentioned as Bipedis sp. B; valid name from Gorican et al. 2006
Bipedis japonicus Gorican et al. 2006 radiolarian
originally mentioned as Bipedis sp. A; valid name from Gorican et al. 2006
 Entactinaria - Eptingiidae
Xenorum "sp. A"
Xenorum "sp. A" Blome 1984 radiolarian
 Spumellaria - Praeconocaryommidae
? Praeconocaryomma sp.
? Praeconocaryomma sp. Pessagno 1976 radiolarian
 Spumellaria - Pantanelliidae
Pantanellium sp.
Pantanellium sp. Pessagno 1977 radiolarian