ARH-T23, Oruatemanu Island: Griesbachian, New Zealand

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Protozoa - Latentifistularia - Cauletellidae
Ishigaum sp. De Wever and Caridroit 1984
Cauletella sp. Caridroit et al. 1999
Cauletella manica (De Wever and Caridroit 1984)
Protozoa - Latentifistularia - Ormistonellidae
Nazarovella scalae Caridroit and De Wever 1986
Protozoa - Entactinaria - Entactiniidae
Entactinia sp. Foreman 1963
synonym of Stigmosphaerostylus
Hegleria arrowrocksensis
Hegleria mammilla (Sheng and Wang 1985)
? Entactinosphaera spoerlii
? Copicyntra sp. Nazarov and Ormiston 1985
Protozoa - Entactinaria - Tetrentactiniidae
Triaenosphaera minuta
Protozoa - Spumellaria - Relindellidae
? Copicyntroides sp. Nazarov and Ormiston 1985
see common names

Geography
Country:New Zealand
Coordinates: 35.0° South, 173.8° East (view map)
Paleocoordinates:70.0° South, 160.2° East
Basis of coordinate:estimated from map
Geographic resolution:hand sample
Time
Period:Triassic Epoch:Early/Lower Triassic
10 m.y. bin:Triassic 1
Key time interval:Griesbachian
Age range of interval:251.90200 - 251.40000 m.y. ago
Stratigraphy
Formation:Oruatemanu
Stratigraphic resolution:bed
Stratigraphy comments: Unit 2b
Lithology and environment
Primary lithology: lithified chert
Environment:basinal (siliceous)
Taphonomy
Modes of preservation:body,original silica
Size of fossils:microfossils
Preservation of anatomical detail:medium
Collection methods and comments
Collection methods:chemical,hydroflouric,field collection
Reason for describing collection:taxonomic analysis
Metadata
Database number:95462
Authorizer:T. Danelian Enterer:T. Danelian
Research group:micropaleontology
Created:2010-04-16 10:14:00 Last modified:2010-04-16 13:14:00
Access level:the public Released:2010-04-16 10:14:00
Creative Commons license:CC BY
Reference information

Primary reference:

32463. 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]