Katsuyama (UF) Section, Inuyama, Kb3 (Jurassic of Japan)

Where: Japan (35.4° N, 136.9° E: paleocoordinates 47.5° N, 146.4° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Pantanellium tanuense zone, Early/Lower Hettangian (201.3 - 196.5 Ma)

• group of beds-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

Collection methods: chemical, hydroflouric,

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 54231: authorized by Wolfgang Kiessling, entered by Martin Riess on 27.09.2005, edited by Adam Kocsis

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
unclassified
  -
Astrocenturnus sp.
Protozoa
 Actinommacea - Xiphostylidae
Archaeocenosphaera laseekensis, Amuria impensa
Archaeocenosphaera laseekensis Pessagno et al. 1989 radiolarian
Amuria impensa Carter et al. 1998 radiolarian
 Nassellaria -
Nassellaria "indet. B"
Nassellaria "indet. B" Ehrenberg 1875 radiolarian
 Nassellaria - Ultranaporidae
? Dumitricaella sp., Bipedis sp., Bipedis japonicus
? Dumitricaella sp. De Wever 1982 radiolarian
Bipedis sp. De Wever 1982 radiolarian
Jurassic type Bipedis
Bipedis japonicus Gorican et al. 2006 radiolarian
 Nassellaria - Syringocapsidae
? Syringocapsa sp.
? Syringocapsa sp. Neviani 1900 radiolarian
 Nassellaria - Parvicingulidae
Dictyomitrella "sp. C", Canoptum merum
Dictyomitrella "sp. C" Haeckel 1887 radiolarian
sensu Yao, 1982
Canoptum merum Pessagno and Whalen 1982 radiolarian
 Nassellaria - Hsuidae
Parahsuum sp., ? Parahsuum sp.
Parahsuum sp. Yao 1982 radiolarian
? Parahsuum sp. Yao 1982 radiolarian
 Entactinaria - Saturnalidae
Praehexasaturnalis tetraradiatus, "Palaeosaturnalis aff. tenuispinosus" = Praehexasaturnalis tenuispinosus
Praehexasaturnalis tetraradiatus Kozur and Mostler 1990 radiolarian
"Palaeosaturnalis aff. tenuispinosus" = Praehexasaturnalis tenuispinosus Donofrio and Mostler 1978 radiolarian
 Entactinaria - Eptingiidae
Charlottea sp.
Charlottea sp. Carter et al. 1998 radiolarian
 Entactinaria - Centrocubidae
Welirella sp.
Welirella sp. Dumitrica et al. 1980 radiolarian
 Spumellaria - Hagiastridae
Udalia sp., ? Crucella sp.
Udalia sp. Carter et al. 1998 radiolarian
? Crucella sp. Pessagno 1971 radiolarian
 Spumellaria - Pantanelliidae
Pantanellium cf. rothwelli, Pantanellium cf. kluense, Gorgansium gongyloideum, Gorgansium cf. gongyloideum
Pantanellium cf. kluense Pessagno and Blome 1980 radiolarian