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Parapetalolithus Koren & Rickards 1996
urn:lsid:organismnames.com:name:1203917
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57
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Parapetalolithus Koren & Rickards 1996
Koren & Rickards 1996. Taxonomy and evolution of Llandovery biserial graptoloids from the southern Urals, western Kazakhstan. Special Papers in Palaeontology, 54 1996: 1-103