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1 November 2016 Middle Ordovician (Darriwilian) Linguliform and Craniiform Brachiopods from the Precordillera (Cuyania Terrane) of West-Central Argentina
Fernando J. Lavié, Juan L. Benedetto
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Abstract

Middle Ordovician lingulacean, trematid, and craniid brachiopods are described and illustrated for the first time from the uppermost part of San Juan Formation limestones of the Precordillera Basin, west-central Argentina. Sampled beds fall within the Ahtiella argentina brachiopod Zone, which, according to associated conodonts, is of early-mid Darriwilian age. The fauna consists of the linguloideans Glossella cuyanica n. sp. and Lingulasma? sp., the discinoidean Trematis sp., the siphonotretid Chilcatreta tubulata n. gen. n. sp., and a conical shell that is referred provisionally to the order Craniida. The linguliforms from the Cuyania (Precordillera) terrane, although still poorly known, display close similarities to those inhabiting low-to-intermediate latitude palaeocontinents, particularly Laurentia and Baltica, in accordance with evidence from rhynchonelliform brachiopods.

© 2016, The Paleontological Society
Fernando J. Lavié and Juan L. Benedetto "Middle Ordovician (Darriwilian) Linguliform and Craniiform Brachiopods from the Precordillera (Cuyania Terrane) of West-Central Argentina," Journal of Paleontology 90(6), 1068-1080, (1 November 2016). https://doi.org/10.1017/jpa.2016.111
Accepted: 1 May 2016; Published: 1 November 2016
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