| Name | From | To | Age range |
|---|---|---|---|
| Lejeunecysta sp.A | Late Maastrichtian | Early Danian |
|
| Lejeunecysta tricuspis | Late Cretaceous | Danian |
|
| Lejeunecysta sp. He,1991 | Turonian | Middle Eocene |
|
| Lejeunecysta circularis | Turonian | Middle Eocene |
|
| Lejeunecysta serrata | Lutetian | Rupelian |
|
| Lejeunecysta cinctoria | Maestrichtian | Rupelian |
|
| Lejeunecysta tenella | Early Paleocene | Late Oligocene |
|
| Lejeunecysta aechmophora | Middle Oligocene | Late Oligocene |
|
| Lejeunecysta sp.5 | Late Oligocene | Early Miocene |
|
| Lejeunecysta sp.2 | Paleocene | Early Miocene |
|
| Lejeunecysta sp.1 | Paleocene | Early Miocene |
|
| Lejeunecysta sp.1 Biff.& Grig.,1983 | Oligocene | Early Miocene |
|
| Lejeunecysta brassensis | Paleocene | Middle Miocene |
|
| Lejeunecysta sp. Duff.& Stei.,1986 | Middle Oligocene | Middle Miocene |
|
| Lejeunecysta illecebrosa | Oligocene | Middle Miocene |
|
| Lejeunecysta pulchra | Late Maestrichtian | Serravallian |
|
| Lejeunecysta sp.A Powe.,1986 | Chattian | Serravallian |
|