Hendey, N.I. (1969). Pyrgupyxis, a new genus of diatoms from a South Atlantic Eocene core. Occasional Papers of the California Academy of Sciences, 72(6): 1-5
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Hendey, N.I.
1969
Pyrgupyxis, a new genus of diatoms from a South Atlantic Eocene core
Occasional Papers of the California Academy of Sciences