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†Parvitubus Skevington 1963
urn:lsid:organismnames.com:name:2615448
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†Parvitubus Skevington 1963
Skevington 1963. Graptolites from the Ontikan Limestones (Ordovician) of oland, Sweden. 1: Dendroidea, Tuboidea, Camaroidea and Stonlonoidea. Bulletin of the Geological Institution University of Uppsala, 42(6) 1963: 1-62