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UPPER ORDOVICIAN BRACHIOPODS FROM THE SAN BENITO FORMATION, CORDILLERA DEL TUNARI, BOLIVIA

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AMEGHINIANA
卷 50, 期 4, 页码 418-428

出版社

ASOCIACION PALEONTOLOGICA ARGENTINA
DOI: 10.5710/AMGH.05.03.2013.558

关键词

Upper Ordovician; Bolivia; Brachiopods; Paleobiogeography

资金

  1. FONCyT (Agencia Nacional de Promocion Cientifica y Tecnologica) [PICT 2004-21857]
  2. Consejo Nacional de Investigaciones Cientificas y Tecnicas (CONICET) [PIP 5599]

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The brachiopod fauna from the San Benito Formation of Bolivia, of late Sandbian-Katian age, is re-studied on the basis of material collected in the Cordillera del Tunari. The new heterorthid genus Tunaria is erected to include the species Orthis berthoisi? var. erratica Davidson, 1869 (formerly attributed to Drabovinella) from England, France and Spain, and the new species Tunaria cocksi from Bolivia. The fauna also includes the first record in South America of Rafinesquina pseudoloricata (Barrande), and Hirnantia cf. transgrediens (Havlicek). Overall, the low diversity San Benito fauna corroborates the Mediterranean biogeographic signature of Central Andean brachiopod assemblages.

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