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Late Llandovery thelodonts and conodonts from the Kilbride Formation, Co. Galway, western Ireland

✍ Scribed by R. J. Aldridge; S. Turner; G. L. Jones; D. A. T. Harper

Book ID: 102658441
Publisher: John Wiley and Sons
Year: 1996
Tongue: English
Weight: 762 KB
Volume: 31
Category: Article
ISSN: 0072-1050
DOI: 10.1002/(sici)1099-1034(199612)31:4<359::aid-gj713>3.0.co;2-k

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✦ Synopsis

Acid etching of a calcareous sandstone horizon within the lower part of the upper Llandovery Kilbride Formation. exposed at Coolin Lough, Co. Galway, has yielded a phosphatic microfauna dominated by conodont elements and thelodont scales. The thelodonts are identified as Logrrnellia ex gr. sc'otic.~ and provide the first record of fishes from the Lower Silurian of Ireland; they suggest a Telychian age. The conodont fiiuna is dominated by Icriodella, indicative of a nearshore environment of deposition. The microfossils were extracted from a shell bed packed with E o c o c h ~ cirrtisi cxrri.ri Ziegler, confirming a late Telychian age and also suggesting a shallow water depositional environment. This fauna developed marginal to Laurentia and is similar to coeval assemblages from the Anglo Welsh area and Baltoscandia. ' !:, 1996 by John Wiley & Sons, Ltd.

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