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†Xenasaphus (Delphasaphus) Ivantsov 2000
urn:lsid:organismnames.com:name:1524878
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55
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†Xenasaphus (Delphasaphus) Ivantsov 2000
Ivantsov 2000. New taxa of asaphid trilobites (Ptychopariida: Asaphinae) from the Ordovician of Leningrad region. Paleontologicheskii Zhurnal, 4, Iyul-Avgust 2000: 50-56