Koguchi, Kuma 7, sample BC 27 (Triassic of Japan)

Where: Japan (32.3° N, 130.6° E: paleocoordinates 39.3° N, 109.2° E)

• hand sample-level geographic resolution

When: Ladinian (242.0 - 237.0 Ma)

• Age based on radiolarians and conodonts

• bed-level stratigraphic resolution

Environment/lithology: basinal (siliceous); lithified chert

• ribbon chert in volcaniclastic breccia

Size class: microfossils

Collection methods: chemical, hydroflouric,

Primary reference: T. Onoue and H. Sano. 2007. Triassic mid-oceanic sedimentation in Panthalassa Ocean: Sambosan accretionary complex, Japan. Island Arc 16(1):173-190 [W. Kiessling/W. Kiessling]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 77120: authorized by Wolfgang Kiessling, entered by Wolfgang Kiessling on 21.12.2007

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Protozoa
 Nassellaria - Ruesticyrtiidae
Yeharaia elegans, Triassocampe postdeweveri, Triassocampe deweveri
Yeharaia elegans Nakaseko and Nishimura 1979 radiolarian
Triassocampe deweveri Nakaseko and Nishimura 1979 radiolarian
 Nassellaria - Monicastericidae
Tubotriassocyrtis annulata
 Nassellaria - Planispinocyrtiidae
Spinotriassocampe annulata
 Entactinaria - Hindeosphaeridae
Pseudostylosphaera sp., Pseudostylosphaera japonica, Pseudostylosphaera compacta, Pseudostylosphaera longispinosa
Pseudostylosphaera sp. Kozur and Mostler 1981 radiolarian
Pseudostylosphaera japonica Nakaseko and Nishimura 1979 radiolarian
Pseudostylosphaera compacta Nakaseko and Nishimura 1979 radiolarian
Pseudostylosphaera longispinosa Kozur and Mostler 1981 radiolarian
 Entactinaria - Pentactinocarpidae
Pentactinocarpus fusiformis
Pentactinocarpus fusiformis Dumitrica 1978 radiolarian
 Spumellaria - Oertlispongidae
Oertlispongus cf. inaequispinosus
Oertlispongus cf. inaequispinosus Dumitrica et al. 1980 radiolarian