Fütterer, 1984
From dinoflaj3
Fütterer, D., 1984: Pithonelloid calcareous dinoflagellates from the Upper Cretaceous and Cenozoic of the southeastern Atlantic Ocean. In: Moore, T.C. Jr. et al., Deep Sea Drilling Project, Washington, Initial Reports, v.74, p.533-541, pl.1-4.