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Article: Upper Ordovician trilobites from the Zap Valley, south-east Turkey

Publication: Palaeontology
Volume: 31
Part: 3
Publication Date: August 1988
Page(s): 621 649
Author(s): W. T. Dean and Zhou Zhiyi
DOI:
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How to Cite

DEAN, W. T., ZHIYI, Z. 1988. Upper Ordovician trilobites from the Zap Valley, south-east Turkey. Palaeontology31, 3, 621–649.

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Abstract

In the extreme south-east of Turkey the Sort Tepe Formation rests disconformably on Arenig strata of the highest Seydisehir Formation. Trilobites are described from the stratotype of the Sort Tepe Formation and a supplementary section, both on the north-east side of the Zap Valley, 40 km south-south-west of Hakkari. The twenty taxa described include three new species: Sinocybele? fluminis, Calymenesun longinasuta, and Paraphillipsinella piluea. The assemblages, of early Ashgill, probably Pusgillian or possibly Cautleyan, age, consist mainly of genera widespread in Europe. Scandinavia, and Asia, but Sinocybele?, Calymenesun, and Paraphillipsinella have not previously been recorded outside China.
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