ARH-T23, Oruatemanu Island (Triassic of New Zealand)

Where: New Zealand (35.0° S, 173.8° E: paleocoordinates 70.0° S, 160.2° E)

• coordinate estimated from map

• hand sample-level geographic resolution

When: Oruatemanu Formation, Griesbachian (251.9 - 250.5 Ma)

• Unit 2b

• bed-level stratigraphic resolution

Environment/lithology: basinal (siliceous); lithified chert

Size class: microfossils

Preservation: original silica

Collection methods: chemical, hydroflouric,

Primary reference: A. Takemura, M. Sakai, S. Sakamoto, R. Aono, S. Takemura and S. Yamakita. 2007. Earliest Triassic Radiolarians from the ARH and ARF sections on Arrow Rocks, Waipapa Terrane, Northland, New Zealand. GNS Science Monograph 24:97-107 [T. Danelian/T. Danelian/M. Uhen]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 95462: authorized by Taniel Danelian, entered by Taniel Danelian on 16.04.2010

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Protozoa
 Spumellaria - Relindellidae
? Copicyntroides sp.
? Copicyntroides sp. Nazarov and Ormiston 1985 radiolarian
 Latentifistularia - Ormistonellidae
Nazarovella scalae
Nazarovella scalae Caridroit and De Wever 1986 radiolarian
 Latentifistularia - Cauletellidae
Ishigaum sp., Cauletella sp., Cauletella manica
Ishigaum sp. De Wever and Caridroit 1984 radiolarian
Cauletella sp. Caridroit et al. 1999 radiolarian
Cauletella manica De Wever and Caridroit 1984 radiolarian
 Entactinaria - Entactiniidae
"Entactinia sp." = Stigmosphaerostylus, Hegleria arrowrocksensis, Hegleria mammilla, ? Entactinosphaera spoerlii, ? Copicyntra sp.
"Entactinia sp." = Stigmosphaerostylus Rüst 1892 radiolarian
Hegleria mammilla Sheng and Wang 1985 radiolarian
? Copicyntra sp. Nazarov and Ormiston 1985 radiolarian
 Entactinaria - Tetrentactiniidae
Triaenosphaera minuta