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Geological magazine, or, Monthly journal of geology v. 57 (1920)
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Morphological studies on the Echinoidea Holectypoida and their allies. X. On Apatopygus gen. nov. and the affinities of some recent Nucleolitoida and Cassiduloida
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By: Hawkins, H L
Type: Article
In: The geological magazine, or, Monthly journal of geology
Volume: 57
Issue: 675
Date: 1920
Page Range: 393--401
Publication info: London [etc.], Cambridge University Press, 1864-