Trilobite: Isabelina glabrata

Small, extremely detailed positiv and negativ preserved trilobites from  the preserve deposit of the Letna Formation in Bohemia, displaying the typically vibrant orange coloring. The rostral plate and cheeks (librigena) form a wide and flat marginal surface freckled with small pustules. Deanaspis often appears in association with the more common Dalmatina, both of which thrived in a shallow marine community. Its wide shape ensured that it did not sink into the soft sediment.Age: Ordovician, Sandbian, Letna Fm.;Locality: Prague, Czech RepublicSize: fossil: approx. 1,2 x 1 cm; slab: approx. 7 x 10  cmThe original specimen may differ slightly in color from the pictures showed here due to technical reasons.

Cream-colored trilobite on matrix. Complete except for cheek spines.Rare!During the Devonian extinction events, the diversity of trilobites was much lower and therefore rarer. Only the Proetida, such as Paladin, survived and even those only until the end of the Permian. This genus fed on detritus on the sea floor. The name comes from the group's large head shields.Age: Upper Carboniferous,  KasimovianLocality: Shirnovsk, Volgograd oblast, RussiaSize: Trilobite: 28 mm; hand piece: 7 x 6.5 cmThe colors on the photo may differ slightly from the original for technical reasons.   

Light brown, almost pastry-colored large trilobite standing out beautifully from the mica-rich, silvery-grey silt matrix, which makes it popular with collectors. The deformation is tectonic and characteristic of this species from this region.The genus was buoyant and an active predator.Age: Middle Ordovician, Llandeilo (correlates with Darriwilium);Locality: Valongo, Norte region, PortugalSize trilobite: 8 cm; matrix: 13.5 x 10 Colors in photos may differ slightly from the original for technical reasons.   

Age: Middle Cambrian (approx. 518 million years old)Locality: Rejkovice, Středočeský kraj region, Czech RepublicSize of the matrix: 15 x 6,5 x 3 cmColors on photos may differ slightly from those of the original specimen for technical reasons.