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      A new giant salamander (Urodela, Pancryptobrancha) from the Miocene of Eastern Europe (Grytsiv, Ukraine)

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      Journal of Vertebrate Paleontology
      Informa UK Limited

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          Generelle Morphologie der Organismen

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            DEVELOPING A PROTOCOL FOR THE CONVERSION OF RANK-BASED TAXON NAMES TO PHYLOGENETICALLY DEFINED CLADE NAMES, AS EXEMPLIFIED BY TURTLES

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              Earliest known crown-group salamanders.

              Salamanders are a model system for studying the rates and patterns of the evolution of new anatomical structures. Recent discoveries of abundant Late Jurassic and Early Cretaceous salamanders are helping to address these issues. Here we report the discovery of well-preserved Middle Jurassic salamanders from China, which constitutes the earliest known record of crown-group urodeles (living salamanders and their closest relatives). The new specimens are from the volcanic deposits of the Jiulongshan Formation (Bathonian), Inner Mongolia, China, and represent basal members of the Cryptobranchidae, a family that includes the endangered Asian giant salamander (Andrias) and the North American hellbender (Cryptobranchus). These fossils document a Mesozoic record of the Cryptobranchidae, predating the previous record of the group by some 100 million years. This discovery provides evidence to support the hypothesis that the divergence of the Cryptobranchidae from the Hynobiidae had taken place in Asia before the Middle Jurassic period.
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                Author and article information

                Journal
                Journal of Vertebrate Paleontology
                Journal of Vertebrate Paleontology
                Informa UK Limited
                0272-4634
                1937-2809
                March 05 2013
                March 05 2013
                : 33
                : 2
                : 301-318
                Article
                10.1080/02724634.2013.722151
                da091d0f-fe7a-48d5-ac90-a5bad780dc1c
                © 2013
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