Morphological studies on the Echinoidea Holectypoida and their allies. X. On Apatopygus gen. nov. and the affinities of some recent Nucleolitoida and Cassiduloida
Hawkins, H L
Article
1920
The geological magazine, or, Monthly journal of geology
57
Issue: 675
393--401
BioStor
English
London [etc.], Cambridge University Press, 1864-
BioStor: https://biostor.org/reference/235229 DOI: https://doi.org/10.1017/S0016756800106600
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