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      A review of the genus Pelodiaetus Jeannel (Coleoptera, Carabidae, Anillini) of New Zealand, with re-description of the genus, description of a new species, and notes on the evolutionary history

      ZooKeys

      Pensoft Publishers

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          Abstract

          On the basis of new morphological data a re-description of the genus Pelodiaetus is provided, a new species of the genus P. nunni sp. nov. (Christchurch, Canterbury, South Island) is described, and P. lewisi Jeannel is proposed as a synonym of P. sulcatipennis Jeannel, syn. nov. A taxonomic key as well as distribution maps for species of Pelodiaetus are provided. Data on comparative morphology and biogeographical aspects of speciation in the genus Pelodiaetus and its morphological relatives from Australia and New Zealand are discussed.

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          Most cited references 34

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          Chronology of fluctuating sea levels since the triassic.

          Advances in sequence stratigraphy and the development of depositional models have helped explain the origin of genetically related sedimentary packages during sea level cycles. These concepts have provided the basis for the recognition of sea level events in subsurface data and in outcrops of marine sediments around the world. Knowledge of these events has led to a new generation of Mesozoic and Cenozoic global cycle charts that chronicle the history of sea level fluctuations during the past 250 million years in greater detail than was possible from seismic-stratigraphic data alone. An effort has been made to develop a realistic and accurate time scale and widely applicable chronostratigraphy and to integrate depositional sequences documented in public domain outcrop sections from various basins with this chronostratigraphic framework. A description of this approach and an account of the results, illustrated by sea level cycle charts of the Cenozoic, Cretaceous, Jurassic, and Triassic intervals, are presented.
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            Initial diversification of living amphibians predated the breakup of Pangaea.

            The origin and divergence of the three living orders of amphibians (Anura, Caudata, Gymnophiona) and their main lineages are one of the most hotly debated topics in vertebrate evolution. Here, we present a robust molecular phylogeny based on the nuclear RAG1 gene as well as results from a variety of alternative independent molecular clock calibrations. Our analyses suggest that the origin and early divergence of the three living amphibian orders dates back to the Palaeozoic or early Mesozoic, before the breakup of Pangaea, and soon after the divergence from lobe-finned fishes. The resulting new biogeographic scenario, age estimate, and the inferred rapid divergence of the three lissamphibian orders may account for the lack of fossils that represent plausible ancestors or immediate sister taxa of all three orders and the heretofore paradoxical distribution of some amphibian fossil taxa. Furthermore, the ancient and rapid radiation of the three lissamphibian orders likely explains why branch lengths connecting their early nodes are particularly short, thus rendering phylogenetic inference of implicated relationships especially difficult.
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              Goodbye Gondwana? New Zealand biogeography, geology, and the problem of circularity.

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                Author and article information

                Journal
                ZooKeys
                ZK
                Pensoft Publishers
                1313-2970
                1313-2989
                October 09 2019
                October 09 2019
                : 879
                : 33-56
                Article
                10.3897/zookeys.879.37684
                6795606
                31636498
                © 2019

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