This is a classical ammonite of the species Dactylioceras athleticum  from the ammonite fields of Schlaifhausen.

This is a very rich ammonite concretion with Arnioceras semicostatum from the Yorkshire Coast.

This study piece of a goniatite of the species Maeneceras biferum.

This is a good ammonite of the species Macrocephalites macrocephalus from the  Porta Westfalica. This ammonite is a good Example of the Wittekind - Flöz of Dehme. That is a very classical ammonite site.

This is a large Ammonite of the species Cadoceras calyx from the Moscow basin. The ammonite is preserved in Nacre*.
(*Moither of Perl)

Here is a quite large trilobite of the genus Chotecops from the classical site of Bundenbach. The trilobite it self is about 44 mm long.

This is a superb preserved trilobite of the species Illaenula vietnamica from the devonian of China.

This is a Degamella nuda from the Hople Shales in a outstanding preservation.
This trilobite is not diagenetically compressed, it is 3dimensional preserved and it offers a great detail level as well.

This is a good example of a quite rare Hefriga frischmanni from Eichstätt.

This is a rare and quite large example of a Homalopteon murchisoni from Wales.

This limulus of the species Mesolimulus walchi from Solnhofen offers a impressive size and a detailed preservation.

This is a enrolled trilobite of the species Ectillaenus giganteus from Valongo.
The trilobite shows a nice, 3dimensional preservation.