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†Richardsonoceras gerhardi Kroeger, Zhang & Isakar 2009

urn:lsid:organismnames.com:name:4372887

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†Richardsonoceras gerhardi Kroeger, Zhang & Isakar 2009

Kroeger, Zhang & Isakar 2009. Discosorids and oncocerids (Cephalopoda) of the Middle Ordovician Kunda and Aseri regional stages of Baltoscandia and the early evolution of these groups. Geobios (Villeurbanne), 42(3), May-June 2009: 273-292