Cookson and Manum, 1960
From dinoflaj2
Cookson, I.C. and Manum, S.B., 1960: On Crassosphaera, a new genus of microfossils from Mesozoic and Tertiary deposits. Nytt Magasin for Botanikk, v.8, p.5-9, pl.1-2.
Cookson, I.C. and Manum, S.B., 1960: On Crassosphaera, a new genus of microfossils from Mesozoic and Tertiary deposits. Nytt Magasin for Botanikk, v.8, p.5-9, pl.1-2.
