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<em>DISCOSIPHONELLA MINIMA</em> SENOWBARI-DARYAN &amp; LINK AND <em><em>SOLENOLMIA</em>?</em> <em>PARVA</em> N. SP. ("SPHINCTOZOA", PORIFERA) FROM THE UPPER TRIASSIC (NORIAN) OF THE SOUTHERN APPENNINES (NORTHERN CALABRIA/ITALY)

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      Abstract

      <p class="abstract-testo">Two hypercalcified sphinctozoan sponges are described from several localities of dolomitic Norian reefs of northern Calabria (southern Italy). <em><em>Solenolmia</em>?</em> <em>parva</em> n. sp. occurs as an extremely abundant, albeit local, component in peculiar bioconstructions dominated by serpulids and microbialitic crusts. <em>Discosiphonella minima</em> Senowbari-Daryan &amp; Link, previously recognized only in the type locality of Turkey, has been now found also as a minor component in association with other typical "Dachstein" reef biota, such as corals, sponges, microbial crusts and fragments of "microproblematica". <em><em>Solenolmia</em>?</em> <em>parva</em> assemblage represents the primary framebuilder of small build-ups which developed on the margins of restricted intraplatform basins. The <em>Discosiphonella minima</em> assemblages were found as resedimented blocks along the slope of intraplatform anoxic basins. The distribution of the different reefal assemblages of Northern Calabria can be related to the paleogeographic position of northern Calabria with respect to the evolution of Triassic crustal extension in western Mediterranean.</p><p class="abstract-testo"> </p>

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      Author and article information

      Journal
      Rivista Italiana di Paleontologia e Stratigrafia
      Università degli Studi di Milano
      01 July 2009
      : 115
      : 2
      65e5620943784ceb8c5da6b3008f8ed8 10.13130/2039-4942/6379

      RIPS is published under a Creative Commons Attribution-NonCommercial-NoDerivatives Licence 4.0 International (CC BY-NC-ND 4.0). The journal allows the author(s) to hold the copyright without restrictions. To view a copy of this license, visit https://creativecommons.org/licenses/by-nc-nd/4.0/

      Categories
      Geology
      QE1-996.5
      Paleontology
      QE701-760

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