The Journal of the Geological Society of Japan
Online ISSN : 1349-9963
Print ISSN : 0016-7630
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Lingularia sp. (Brachiopoda) from Middle Triassic bedded chert in Shikoku, Japan
Rie S. HoriHamish J. Campbell
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Volume 110 (2004) Issue 12 Pages 758-764

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Abstract

A lingulid brachiopod Lingularia sp. is described from Middle Triassic (Anisian) bedded chert in the Northern Chichibu Terrane, Shikoku, Japan. The fossil occurrence is unusual because of its association within deep-sea sediments. Lingulids are well known from Early and Middle Triassic successions and their apparent abundance may relate to the recovery following the Permian/Triassic (P/T) extinction event. This find in Japan tends to support the view that lingulids favoured dysoxic conditions and became widespread in vacant niches of the ocean after the P/T boundary anoxic event as “opportunistic taxa”.

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© 2004 by The Geological Society of Japan
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