G. E. Wiegand

Potential Deep-Sea Petroleum Source Beds Related to Coastal Upwelling

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Cretaceous Nannofossils from the Northwest African Margin, Deep Sea Drilling Project Leg 79

G. E. Wiegand, 1984 .

JURASSIC NANNOFOSSILS FROM THE NORTHWEST AFRICAN MARGIN , DEEP SEA DRILLING PROJECT LEG 79 1

G. E. Wiegand, 2006 .

TWO NEW GENERA OF CALCAREOUS NANNOFOSSILS FROM THE LOWER JURASSIC

G. E. Wiegand, 1984 .