Here is a large and quite rare diploporite Cystoidea of the genus Phlyctocystis from Portugal. This specimen is likely belongs to the species Phlyctocystis gigas (Termier & Termier, 1950).
This is a small but detailed regular sea urchin which belongs to the genus Phymosoma. This fossil echinoid from Painten snows many spines. These spine have a longitudinal striated ornamentation
Here is a inexpensive "Solnhofen Starfish" of the species Riedaster reicheli from Ried. The Riedaster it self measures about 35 x 25 mm as it is on the matrix.
Here is a rarely offered plate with several fossil brittle stars of the quite rare species Stephanura belgica from the upper Devonian by Velbert near Langenholz in Germany.