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Geological magazine, or, Monthly journal of geology v. 57 (1920)
Parts
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-