Conodonts from the Permian - Triassic transition in Australia and position of the Permian - Triassic boundary
Date
2008
Authors
Metcalfe, Ian
Nicoll, Robert
Willink, R J
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Blackwell Publishing Ltd
Abstract
Late Permian (late Changhsingian), possible Early Triassic Induan (Dienerian), and early Olenekian (Smithian) conodonts have been recovered from the Hovea Member of the Kockatea Shale in the exploration well Corybas 1, northern Perth Basin, Western Australia. Placement of the biostratigraphic Permian - Triassic boundary is in the lower part of the Sapropelic Interval of the Hovea Member. The Australian endemic Protohaploxypinus microcorpus palynofloral Zone is confirmed to be of late (but not latest) Changhsingian age. The Permian - Triassic boundary, based on international calibration using conodonts, carbon-isotope stratigraphy and new radio-isotopic dating, is placed in the lower part of the Kraeuselisporites saeptatus and Lunatisporites pellucidus Zones of western and eastern Australia, respectively, which corresponds approximately to the basal part of the Rewan Group and equivalents in eastern Australia.
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Keywords
Keywords: biostratigraphy; carbon isotope; conodont; flora; palynology; Permian-Triassic boundary; Australasia; Australia; Perth Basin; Western Australia; Corybas; Hovea; Kraeuselisporites; Lunatisporites; Protohaploxypinus Australia; Conodonts; International calibration; Megaspores; Permian-Triassic boundary
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Source
Australian Journal of Earth Sciences
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Journal article
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2037-12-31
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