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†Protokossmaticeras Collignon 1964
urn:lsid:organismnames.com:name:2542571
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†Protokossmaticeras Collignon 1964
Collignon 1964. Atlas des fossiles caracteristiques de Madagascar. (Ammonites). XI. (Cenomanien). Service Geologique, Tananarive, 1964: i-xi, 1-152