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†Validaspis Rioult & Nichols 1977
urn:lsid:organismnames.com:name:2036269
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†Validaspis Rioult & Nichols 1977
Rioult & Nichols 1977. Tomaculum problematicum Groom 1902: trace d'activite animale dans les schistes Ordoviciens du synclinal d'Urville (Normandie). Bulletin Soc linn Normandie, 105, 1975-1976 1977: 13-18