Downie and Sarjeant, 1963
From dinoflaj2
Downie, C. and Sarjeant, W.A.S., 1963: On the interpretation and status of some hystrichosphere genera. Palaeontology, v.6, no.1, p.83-96.
Downie, C. and Sarjeant, W.A.S., 1963: On the interpretation and status of some hystrichosphere genera. Palaeontology, v.6, no.1, p.83-96.
