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24 September 2012 Anatomy and Phylogenetic Relationships of Calamops paludosus (Temnospondyli, Stereospondyli) from the Triassic of the Newark Basin, Pennsylvania
Hans-Dieter Sues, Rainer R. Schoch
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Abstract

The holotype of the large temnospondyl Calamops paludosus is the oldest known tetrapod fossil from the Triassic of the Newark basin in Pennsylvania. Although it is usually placed in Metoposauridae, its affinities have remained unknown since its original description because the unique specimen had never been prepared. Preparation and casting of the specimen, which comprises three pieces of a left mandibular ramus, now permits detailed anatomical description of the jaw and assessment of its affinities. Calamops paludosus is a valid taxon of trematosauroid temnospondyls that can be diagnosed by several autapomorphies. It represents one of the geologically youngest known records of long-snouted trematosaurs and the first record of these temnospondyls from the Late Triassic of North America.

SUPPLEMENTAL DATA—Supplemental materials are available for this article for free at  www.tandfonline.com/UJVP

© 2013 by the Society of Vertebrate Paleontology
Hans-Dieter Sues and Rainer R. Schoch "Anatomy and Phylogenetic Relationships of Calamops paludosus (Temnospondyli, Stereospondyli) from the Triassic of the Newark Basin, Pennsylvania," Journal of Vertebrate Paleontology 33(5), 1061-1070, (24 September 2012). https://doi.org/10.1080/02724634.2013.759120
Received: 26 November 2012; Accepted: 1 December 2012; Published: 24 September 2012
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