Here is a Cytstoid of the Ceratocystis perner species from Skryje.

Here is a decorative specimen with a Carpoidea or Calcichordata of the species Ceratocystis perneri together with a partial trilobite negative of a Ctenocephalus coronatus.

This is a multiple plate with servile Cystiods of the species Dendrocystites barrandei.

Here we have a very detailed preserved caproid  of the species Rhenocystis latipendunculata from the Lower Devonian of Bundenbach.

Here is a solutan carpoid echinoderm from the Fezouata Shale of Morocco. The carpoid shows some affinitiy some to Plasiacystis mobilis but it is likely a not described species.

This is a Cystoid of the species Cystoid Sucocystis theronensis from the middle Cambrian of France.