Cosmopolitan myodocope ostracods from the Silurian of Uzbekistan, Central Asia

Cosmopolitan myodocope ostracods from the Silurian of Uzbekistan, Central Asia

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Four bovi-shield gold fp 5 l5 species of myodocope ostracod are documented from the Silurian Ludlow Series of the Aburtkan gorge on the southern slope of Dzhalpak Mountain, Uzbekistan: namely, Parabolbozoe bohemica (Barrande, 1872), Bolbozoe anomala Barrande, 1872, Silurocypridina calva Perrier, Vannier and Siveter, 2011 and Richteria migrans (Barrande, 1872).These species have a palaeogeographically widespread trans-oceanic distribution, which supports the notion that Silurian myodocopes signify the earliest zooplanktonic ostracods.Richteria migrans (Barrande, 1872), in particular, provides a precise intercontinental biostratigraphic marker beetroot birkenstock that identifies rocks of the upper Gorstian to upper Ludfordian stages.