2002
DOI: 10.1080/00288306.2002.9514974
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Triassic radiolarians from the ocean‐floor sequence of the Waipapa Terrane at Arrow Rocks, Northland, New Zealand

Abstract: Triassic radiolarians are reported from two horizons in Waipapa Terrane at Arrow Rocks, Whangaroa area, Northland. This relatively undisturbed succession represents an ocean-floor sequence, consisting (in ascending order) of basalt with limestone layers, bedded chert, black shale, and red, maroon and green siliceous mudstone.

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Cited by 22 publications
(25 citation statements)
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“…Glomeropyle sp. is also reported from Early?-Middle Triassic bedded chert (sample ARB-T57) in Arrow Rocks, Whangaroa area, New Zealand (Takemura et al 2002). The ARB-T57 horizon is now datable to Anisian based on conodont biostratigraphic data (S. Yamakita & A.…”
Section: Biostratigraphic Significance Of First Appearance Of Glomeromentioning
confidence: 88%
“…Glomeropyle sp. is also reported from Early?-Middle Triassic bedded chert (sample ARB-T57) in Arrow Rocks, Whangaroa area, New Zealand (Takemura et al 2002). The ARB-T57 horizon is now datable to Anisian based on conodont biostratigraphic data (S. Yamakita & A.…”
Section: Biostratigraphic Significance Of First Appearance Of Glomeromentioning
confidence: 88%
“…As was mentioned earlier, the preservation of radiolarian faunas were so strongly affected by the end Permian environmental collapse that a conspicuous "radiolarite gap" has been described (Isozaki 1994(Isozaki , 1997Kakuwa 1996) from the uppermost Permian (Clarkina iranica Zone of conodont) until the end of the lower Olenekian (top of the Smithian) lasting about 10 Ma. But recent investigations show that this gap, spread over the world, does not exist in high southern latitudes (New Zealand) where radiolarites have been recently described Takemura et al 2002Takemura et al , 2003.…”
Section: Discussionmentioning
confidence: 99%
“…In the aftermath of the mass extinction, when the last representatives of the orders Albaillellaria and Latentifistularia completely disappeared, with the exception of some genera: Follicucullus, Ishigaum, Cauletella which are mentioned till the Early Triassic, (Sugiyama 1997;Takemura et al 2002), the Early Triassic faunas were characterized by extremely low diversity and poor preservation Sashida 1983Sashida , 1991Sugiyama 1992Sugiyama , 1997Suzuki et al 2002). These faunas mostly contain entactinarians (Cryptostephanidium, Entactinia, Hegleria, Parentactinia, Pseudostylosphaera, Tiborella), some sparse mono-and dicyrtid nassellarians (Archaeosemantis, Hozmadia, Poulpus, Spongosilicarmiger?…”
Section: Diversity Of Radiolarian Families At a Global Scalementioning
confidence: 99%
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“…Alongside the contemporaneous ''coal gap'' and the ''reef gap'', the absence of Early Triassic biogenic chert, following a Middle to Late Permian interval of widespread chert accumulation (Permian Chert Event of Murchey and Jones, 1992; see also Beauchamp and Baud, 2002), attests for the significant and lasting environmental deterioration that occurred across the Permian-Triassic transition. It is only in southern Panthalassa that chert deposition appeared to have been continuous (Arrow Rock, New Zealand, Takemura et al, 2002;Spörli et al, 2007). The intertropical Panthalassa oceanic sections are devoid of carbonates and biogenic siliceous sediments, which reappear progressively up section near the end of the Lower Triassic.…”
Section: Chert Gapmentioning
confidence: 95%