Traits taxon details
original description
Geinitz, H. B. (1847). <i>Orthothrix</i> Geinitz. <em>Bulletin de la Société impériale des naturalistes de Moscou.</em> 20(2): 84-86. [details]
basis of record
Tazawa, J. I. (2012). Late Permian (Changhsingian) brachiopod fauna from Nabekoshiyama in the Kesennuma area, South Kitakami Belt, northeast Japan. <em>Science Reports, Niigata University (Geology).</em> 27: 15-50. [details]
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