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1 May 2012 Coelacanth Remains from the Late Jurassic-?Earliest Cretaceous of Uruguay: The Southernmost Occurrence of the Mawsoniidae
Matías Soto, Marise S. S. De Carvalho, John G. Maisey, Daniel Perea, Jorge Da Silva
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Abstract

Mawsonia, the largest actinistian, was a non-marine form common in continental and estuarine deposits of the Tithonian—Cenomanian of western Gondwana. The genus has been recently reviewed, and only two species are recognized as valid: M. gigas and M. tegamensis. Herein we describe new material that can be referred to this genus, including two basisphenoids, a coronoid, a pterygoid, a metapterygoid, one operculum, and two posparietals. The Uruguayan record represents the southernmost occurrence of Mawsonia and the Mawsoniidae in the world, and strengthens the Late Jurassic—Early Cretaceous age proposed for the unit.

© 2012 by the Society of Vertebrate Paleontology
Matías Soto, Marise S. S. De Carvalho, John G. Maisey, Daniel Perea, and Jorge Da Silva "Coelacanth Remains from the Late Jurassic-?Earliest Cretaceous of Uruguay: The Southernmost Occurrence of the Mawsoniidae," Journal of Vertebrate Paleontology 32(3), 530-537, (1 May 2012). https://doi.org/10.1080/02724634.2012.660899
Received: 20 August 2011; Accepted: 19 January 2012; Published: 1 May 2012
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