PBDB Collection

Minowa Quarry, YZH section, Kuzuu, samples 36-42 (Triassic of Japan)

Where: Tochigi, Japan (36.4° N, 139.6° E: paleocoordinates 39.7° N, 117.5° E)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Anisian (247.2 - 242.0 Ma)

• 4 samples (YZH-36 - YZH-42), Pseudostylosphaera japonica interval zone

• group of beds-level stratigraphic resolution

Environment/lithology: basinal (siliceous); lithified chert

• blue gray chert

Size class: microfossils

Primary reference: M. Ohtaka, Y. Aita, and T. Sakai. 1998. Middle Triassic radiolarian biostratigraphy of the bedded chert in the Minowa quarry, Kuzuu Town, Ashio Mountains. News of Osaka Micropaleontologists, Special Volume 11:95-113 [W. Kiessling/U. Merkel]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 96063: authorized by Wolfgang Kiessling, entered by Uta Merkel on 11.05.2010

Creative Commons license: CC BY (attribution)

Taxonomic list

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Protozoa
Entactinaria - Hindeosphaeridae	Pseudostylosphaera sp., Pseudostylosphaera japonica, Pseudostylosphaera tenuis, Pseudostylosphaera longispinosa, Pseudostylosphaera compacta, "Pseudostylosphaera spinulosa" = Hindeosphaera spinulosa Pseudostylosphaera sp. Kozur and Mostler 1981 radiolarian Pseudostylosphaera japonica Nakaseko and Nishimura 1979 radiolarian Pseudostylosphaera tenuis Nakaseko and Nishimura 1979 radiolarian Pseudostylosphaera longispinosa Kozur and Mostler 1981 radiolarian Pseudostylosphaera compacta Nakaseko and Nishimura 1979 radiolarian "Pseudostylosphaera spinulosa" = Hindeosphaera spinulosa Nakaseko and Nishimura 1979 radiolarian
Entactinaria - Multiarcusellidae	Tiborella "sp. A", Tiborella "sp. B", Tiborella sp., Tiborella aff. agria Tiborella "sp. A" Dumitrica et al. 1980 radiolarian Tiborella "sp. B" Dumitrica et al. 1980 radiolarian Tiborella sp. Dumitrica et al. 1980 radiolarian Tiborella aff. agria Sugiyama 1992 radiolarian
Entactinaria - Entactiniidae	Entactinosphaera sp. Entactinosphaera sp. Foreman 1963 radiolarian
Entactinaria - Eptingiidae	Eptingium "sp. A", Eptingium sp., Eptingium nakasekoi, Cryptostephanidium "sp. A", Cryptostephanidium "sp. C", Cryptostephanidium sp., Cryptostephanidium japonicum Eptingium "sp. A" Dumitrica 1978 radiolarian Eptingium sp. Dumitrica 1978 radiolarian Eptingium nakasekoi Kozur and Mostler 1994 radiolarian Cryptostephanidium "sp. A" Dumitrica 1978 radiolarian Cryptostephanidium "sp. C" Dumitrica 1978 radiolarian Cryptostephanidium sp. Dumitrica 1978 radiolarian Cryptostephanidium japonicum Nakaseko and Nishimura 1979 radiolarian
Entactinaria - Palaeoscenidiidae	Parentactinia nakatsugawaensis Parentactinia nakatsugawaensis Sashida 1983 radiolarian
Nassellaria - Ruesticyrtiidae	Triassocampe "sp. A", Triassocampe "sp. B", Triassocampe "sp. C", Triassocampe "sp. F", Triassocampe "sp. G", Triassocampe sp., Triassocampe myterocorys, Triassocampe coronata, Annulotriassocampe campanilis Triassocampe "sp. A" Dumitrica et al. 1980 radiolarian Triassocampe "sp. B" Dumitrica et al. 1980 radiolarian Triassocampe "sp. C" Dumitrica et al. 1980 radiolarian Triassocampe "sp. F" Dumitrica et al. 1980 radiolarian Triassocampe "sp. G" Dumitrica et al. 1980 radiolarian Triassocampe sp. Dumitrica et al. 1980 radiolarian Triassocampe myterocorys Sugiyama 1992 radiolarian Triassocampe coronata Bragin 1991 radiolarian Annulotriassocampe campanilis Kozur and Mostler 1994 radiolarian
Nassellaria - Poulpidae	Hozmadia sp. Hozmadia sp. Dumitrica et al. 1980 radiolarian
Nassellaria - Spongosilicarmigeridae	Spongosilicarmiger sp. Spongosilicarmiger sp. Kozur 1984 radiolarian
Spumellaria - Capnuchosphaeridae	Plafkerium sp., ? Plafkerium antiquum, Sarla "sp. A" Plafkerium sp. Pessagno et al. 1979 radiolarian ? Plafkerium antiquum Sugiyama 1992 radiolarian Sarla "sp. A" Pessagno et al. 1979 radiolarian