Discovery of Triassic microfossils from the Buruanga Peninsula, Panai Island, North Palawan Block, Philippines

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We found Middle and Late Triassic conodonts and radiolarians from the pelagic carbonates and successive siliceous sediments of the Buruanga Peninsula in Panai Island, North Palawan Block. The carbonate units, long estimated to be Jurassic, revealed late Anisian and late Norian. The pelagic limestone carapace of basalt was constrained within the conodont Gladigondolella tethydis – Paragondolella excelsa Zone (late Illyrian/early Fassanian). The successive bedded-chert unit starts from Fassanian (lower Ladinian) radiolarian Triassocampe spp. – Yeharaia spp. Zone. The early to late Norian conodont mixed faunas (from Ancyrogondolella quadrata Zone to Mockina bidentata Zone and Misikella hernsteini Zone) were extracted from the turbiditic clastic-carbonate unit that intertongues with the pelagic limestone/chert unit of latest Norian age (conodont Misikella hernsteini Zone).

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  • 自然科学研究

    自然科学研究 29 (2), 5-20, 2015-04

    [徳島] : 徳島大学総合科学部 ; 1988-2015

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