Ordovician stromatoporoids from the Langkawi Islands, Malaysia
- 1 January 1985
- journal article
- research article
- Published by Taylor & Francis in Alcheringa: An Australasian Journal of Palaeontology
- Vol. 9 (2) , 159-166
- https://doi.org/10.1080/03115518508618964
Abstract
Four species of labechiid stromatoporoids are described from Unit J of the Lower Setul Limestone (Middle Ordovician) of the Langkawi Islands. They include Labechia variabilis Yabe & Sugiyama 1930 and Rosenella woyuensis Ozaki 1938, reported previously from the Middle Ordovician of north China and the Gisbornian-Eastonian of New South Wales. Tentative correlations employing nautiloids and conodonts suggest that the Malaysian and perhaps some of the north Chinese labechiid occurrences have a pre-Chazyan Whiterockian (Llanvirnian) age, that is, they are the oldest known Ordovician stromatoporoids, appearing prior to the previously earliest known Chazyan forms of North America and Tasmania.Keywords
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