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†Ptychoparopsis issafenensis Hupe 1954
urn:lsid:organismnames.com:name:2851823
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†Ptychoparopsis issafenensis Hupe 1954
Hupe 1954. Contribution a l'etude des Trilobites du Maroc, in Contribution a l'etudo du Cambrien inferieur et du Precambrien III de l'Anti-Atlas marocain. Notes Service des Mines Maroc, No. 103 1954: 41-296