Brotzen, F. (1963). Evolutionary trends in certain calcareous foraminifera on the Paleozoic-Mesozoic boundary, in G. H. R. von Koenigswald et al., ed. Evolutionary Trends in Foraminifera. Amsterdam: Elsevier. 66-78.
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Brotzen, F.
1963
Evolutionary trends in certain calcareous foraminifera on the Paleozoic-Mesozoic boundary, in G. H. R. von Koenigswald et al., ed. Evolutionary Trends in Foraminifera.