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A stem batrachian from the Early Permian of Texas and the origin of frogs and salamanders
The origin of extant amphibians (Lissamphibia: frogs, salamanders and caecilians) is one of the most controversial questions in vertebrate evolution, owing to large morphological and temporal gaps inExpand
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Limb ossification in the Paleozoic branchiosaurid Apateon (Temnospondyli) and the early evolution of preaxial dominance in tetrapod limb development
SUMMARY Despite the wide range of shapes and sizes that accompany a vast variety of functions, the development of tetrapod limbs follows a conservative pattern of de novo condensation, branching, andExpand
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A new species of Cymbospondylus (Diapsida, Ichthyosauria) from the Middle Triassic of Nevada and a re-evaluation of the skull osteology of the genus
A new species of Cymbospondylus from the Favret Formation in the Augusta Mountains, Nevada, is described based on one specimen (FMNH PR2251), of which large parts of the skull as well as postcranialExpand
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Variability and Conservation in Late Chondrichthyan Development: Ontogeny of the Winter Skate (Leucoraja ocellata)
The ontogeny of the northwestern Atlantic batoid, Leucoraja ocellata, is described with special focus on the development of skate specific morphologies and the development of the fins. The resultsExpand
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Macropredatory ichthyosaur from the Middle Triassic and the origin of modern trophic networks
The biotic recovery from Earth’s most severe extinction event at the Permian-Triassic boundary largely reestablished the preextinction structure of marine trophic networks, with marine reptilesExpand
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Reappraisal of the Early Permian amphibamid Tersomius texensis and some referred material
Abstract The accuracy of the taxonomic assignment of three skulls in the collections of the Museum of Comparative Zoology (Harvard University) to the Early Permian taxon Tersomius texensis has beenExpand
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A New Lower Permian Amphibamid (Dissorophoidea, Temnospondyli) from the Fissure Fill Deposits Near Richards Spur, Oklahoma
Abstract The fissure fills of Richards Spur, Oklahoma, together constitute the most productive Paleozoic continental fossil locality in the world, having produced a wealth of terrestrial vertebrates,Expand
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A NEW BASAL PTEROSAUR GENUS FROM THE UPPER TRIASSIC OF THE NORTHERN CALCAREOUS ALPS OF SWITZERLAND
:  A lower jaw with multicusped teeth and a number of unique characteristics was discovered in an extensive exposure of the Upper Triassic Kossen Formation in the Northern Calcareous Alps. The ramusExpand
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Deep-time evolution of regeneration and preaxial polarity in tetrapod limb development
Among extant tetrapods, salamanders are unique in showing a reversed preaxial polarity in patterning of the skeletal elements of the limbs, and in displaying the highest capacity for regeneration,Expand
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METAMORPHOSIS AND NEOTENY: ALTERNATIVE PATHWAYS IN AN EXTINCT AMPHIBIAN CLADE
Abstract The Branchiosauridae was a clade of small amphibians from the Permo‐Carboniferous with an overall salamander‐like appearance. The clade is distinguished by an extraordinary fossil recordExpand
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