Poretskaya, E. S. 1968b. [A new Callovian Collyrites from central Asia]. Pp. 286-287 in B. P. Markovskii (ed.) [New species of fossil plants and invertebrates from the USSR] Nedra, Moskva.
169456
Poretskaya, E. S.
1968
A new Callovian Collyrites from central Asia
New species of fossil plants and invertebrates from the USSR