Peridineae Pediastrum and Gomphosphaeria in Pliocene and Pleistocene deposits of the Caspian Region
Reference:
Chigurayeva,A.A. et al. (1965)
Peridineae Pediastrum and Gomphosphaeria in Pliocene and Pleistocene deposits of the Caspian Region Vsesoyuzny Neftyanoi Nauchno-Issledova-Tel'Ny Geologorazvedochny Institut,Palaeontological Congress,Novosibirsk,1965
P. 105- 114