BUKRY, David 1978 (Jan.) Cenozoic coccolith and silicoflagellate stratigraphy, offshore Northwest Africa, Deep Sea Drilling Project Leg 41 Initial Rep. Deep Sea Drilling Project 41: 689-707, incl. 3 pls., 6 figs. [incl. n.ssp. in Corbisema, n.c. in Dictyocha, Distephanus, Mesocena]