This is a double on Eodalmanitina macrophtalma from Valongo.

Here is a large and nice Arthricocephalus laterilobatusfrom the  Hotang Formation.

This is a trilobite double from the lower Cambrian of China.
Both trilobites belong to the species Arthricocephalus laterilobatus.

This is a Eldredgeia venustus concretion with positive and negative side as a inexpensive example.

This is a good example of a Belenopyge balliviani from Bolivia.
Acantopyge balliviani is a synonym of Belenopyge balliviani.

This is a large trilobite of the species Hoekaspis matacensis from the middle Ordovician of Bolivia. The trilobite is nicely centred on a  massive and nearly circular concretion.

This is a small and coloufull specimen of a ammonite of the species Psiloceras planorbis.

Here is a small belemnite from Nusplingen of the species Hibolithes semisulcatus.
The belemnite is about 29 mm long.

Here is small and detailed Trilobite of the species Arthricocephalus laterilobatus from the lower Cambrian of China.

This is a rare trilobite of the species Balcoracania dailyi from the lower Cambrian of Australia.

Her eis a enrolled Trilobite of the genus Chotecops from Bundenbach in a good preservation.
Both eyes do show the compound eye structures of the phacopid trilobite eye.

This Furcaster palaeozoicus from Bundenbach is a very detailed example piece of a brittle star.  The body disk shows some nice preserved micro structures.