Lejeunecysta paratenella (Benedek, 1972, p.41–42, pl.5, fig.8; text-fig.18) Artzner and Dörhöfer, 1978, p.1381.

Originally Lejeunia (an illegitimate generic name), subsequently Lejeunecysta.
Taxonomic senior synonym: Selenopemphix selenoides, according to Benedek and Sarjeant (1981, p.336-338).
Taxonomic junior synonym: Trinovantedinium (now Lejeunecysta) oliva, according to Harland (1977b, p.105) - however, Turon and Londeix (1988, p.344) retained Trinovantedinium (as Lejeunecysta) oliva.

Holotype: Benedek, 1972, pl.5, fig.8; Benedek and Sarjeant, 1981, fig.9, nos.3-4
Age: Late Oligocene