PBDB Collection

Mt. Kinkazan, Gifu City, P. nakatsugawaensis assemblage: Spathian, Japan

List of taxa

Where & when

Geology

Taphonomy & methods

Metadata & references

Taxonomic list

Protozoa - Entactinaria - Pylentonemidae

	? Polyentactinia biacus n. sp. Sugiyama 1992

	? Polyentactinia crux n. sp. Sugiyama 1992
Protozoa - Entactinaria - Entactiniidae

	Entactinia morii n. sp. Sugiyama 1992
Protozoa - Entactinaria - Eptingiidae

	Cryptostephanidium longispinosum (Sashida 1991)
Protozoa - Entactinaria - Palaeoscenidiidae

	Parentactinia ramosus

	Parentactinia nakatsugawaensis Sashida 1983

	Parentactinia okuchichibuensis (Sashida 1991)
Protozoa - Entactinaria - Multiarcusellidae

	Tiborella agria n. sp. Sugiyama 1992
Protozoa - Entactinaria - Kungalariidae

	Pentabelus furutanii n. gen., n. sp. Sugiyama 1992

	Tetrarhopalus itoigawai
Protozoa - Entactinaria - Hindeosphaeridae

	Parasepsagon leptaleus n. sp. Sugiyama 1992

	Pseudostylosphaera kozuri n. sp. Sugiyama 1992
Protozoa - Ethmosphaeridae

	Cenosphaera andoi n. sp. Sugiyama 1992
Polycystinea - Nassellaria - Plagiacanthidae

	Tetrarchiplagia simplex n. sp. Sugiyama 1992

	Zamolxis dumitricai n. sp. Sugiyama 1992
Polycystinea - Nassellaria - Archaeosemantidae

	Archaeosemantis cristianensis Dumitrica 1982
Polycystinea - Nassellaria - Ultranaporidae

	Hinedorcus holdsworthi n. sp. Sugiyama 1992
Polycystinea - Nassellaria - Tripedurnulidae

	Tripedocorbis sp. Dumitrica 1991
Polycystinea - Nassellaria - Anisicyrtiidae

	Zevius yaoi

	Zevius perarmatus
Polycystinea - Nassellaria - Poulpidae

	? Triassobipedis aetoides n. sp. Sugiyama 1992

	Poulpus nishimurae n. sp. Sugiyama 1992

	Hozmadia ozawai n. sp. Sugiyama 1992
Polycystinea - Spumellaria - Capnuchosphaeridae

	? Plafkerium antiquum Sugiyama 1992
Polycystinea - Spumellaria - Pantanelliidae

	? Pantanellium virgeum
Polycystinea - Spumellaria - Archaeospongoprunidae

	Pegoxystris informal sp. A

	Pegoxystris mizutanii n. gen., n. sp. Sugiyama 1992
see common names

Geography

Country:	Japan
Coordinates:	35.4° North, 136.8° East (view map)
Paleocoordinates:	3.7° North, 133.8° East (Wright 2013)
Basis of coordinate:	based on nearby landmark
Geographic resolution:	outcrop

Time

Period:	Triassic	Epoch:	Early Triassic
Stage:	Olenekian	10 m.y. bin:	Triassic 1
Key time interval:	Spathian
Age range of interval:	248.6 - 247 m.y. ago

Stratigraphy

Stratigraphic resolution:	group of beds
Stratigraphy comments: Parentactinia nakatsugawaensis assemblage

Lithology and environment

Primary lithology:	lithified muddy chert
Secondary lithology:	lithified cherty/siliceous "shale"
Lithology description: black muddy chert and siliceous shale
Environment:	basinal (siliceous)

Taphonomy

Modes of preservation:	body
Size of fossils:	microfossils
Preservation of anatomical detail:	good

Collection methods and comments

Collection methods:	field collection
Reason for describing collection:	taxonomic analysis

Metadata

Database number:	95372
Authorizer:	W. Kiessling	Enterer:	U. Merkel
Research group:	micropaleontology
Created:	2010-04-14 06:16:27	Last modified:	2025-02-22 15:12:02
Access level:	the public	Released:	2010-04-14 06:16:27
Creative Commons license:	CC0

Reference information

Primary reference:

32453.

K. Sugiyama. 1992. Lower and Middle Triassic radiolarians from Mt. Kinkazan, Gifu Prefecture, central Japan. Transactions and Proceedings of the Paleontological Society of Japan, N.S. 167:1180-1223 [W. Kiessling/U. Merkel]