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†Isograptus subtilis Williams & Stevens 1988

urn:lsid:organismnames.com:name:718549

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72

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†Isograptus subtilis Williams & Stevens 1988

Williams & Stevens 1988. Early Ordovician (Arenig) graptolites of the Cow Head Group, western Newfoundland, Canada. Palaeontographica Canadiana, No. 5 1988: 1-167