Leiosphaerid
Leiosphaeridia is a form-genus of acritarchs proposed by Eisenack in 1958. The grouping was refined to represent a more natural group by Jankauskas. Some leiosphaerid acritarchs have been recognised as vaucheriacean algæ. The class represents shallow-water environments. See also
 Leiosphaeridia

References

Acritarchs