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†Isorthis (Ovalella) Walmsley & Boucot 1975
urn:lsid:organismnames.com:name:2124028
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75
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†Isorthis (Ovalella) Walmsley & Boucot 1975
Walmsley & Boucot 1975. The phylogeny, taxonomy and biogeography of Silurian and early to mid. Devonian lsorthinae (Brachiopoda). Palaeontographica Abt A, 148(1-3) 1975: 34-108.10 pls