Tjalsma, R. C.; Lohmann, G. P. (1983). Paleocene-Eocene bathyal and abyssal benthic foraminifera from the Atlantic Ocean. Micropaleontology Special Publication. 4: 1-90.
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Tjalsma, R. C.; Lohmann, G. P.
1983
Paleocene-Eocene bathyal and abyssal benthic foraminifera from the Atlantic Ocean