Burckle, L.H. (1972). Late Cenozoic planktonic diatom zones from the Eastern Equatorial Pacific. In: R. Simonsen (ed.), Proceedings of the First Symposium on Recent and Fossil Marine Diatoms, Bremenhaven, September 21-26, 1970. Beihefte zur Nova Hedwigia, 39: 217-249
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Burckle, L.H.
1972
Late Cenozoic planktonic diatom zones from the Eastern Equatorial Pacific
In: R. Simonsen (ed.), Proceedings of the First Symposium on Recent and Fossil Marine Diatoms, Bremenhaven, September 21-26, 1970. Beihefte zur Nova Hedwigia