On Placocystella, a new genus of Cystids from the Lower Devonian of South Africa
Article
1936
Annals of the South African Museum. Annale van die Suid-Afrikaanse Museum
31
269--275
BioStor
English
Cape Town, South African Museum, 1898-2004
BioStor: https://biostor.org/reference/111666
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