This is a trilobite of the species Cedaria minor from the Weeks Formation of Utah.

Here is a exampple of the rare "Weeks Trilobite" species Menomonia sahratiani
The specuies Menomonia sahratiani  was just recently (officially) rediscriped by Robison & Babcock in 2011. This trilobite was also disciped in the unpublished "Shanan Peters Dissertation", 2003 as Nephalicephalus beebe. Infomations of the status of the "Shanan Peters Dissertation" are sparsely.

This "Valongo Trilobite" of the species Placoparia tournemini comes with the positive and negative side as well.

Here is a nice "Utah Trilobite" of the species Asaphiscus wheeleri on a nice Matrix.

This trilobite belongs to the species Boeckops ovatus from the Jbel Oufaten section in Morocco.

Here is a large and rare trilobite of the species Lepidoproetus lacheni from the Pragian of Morocco. The species Lepidoproetus lacheni was just recently discriped by Johnson and Fortey in 2012.  This specimen of Lepidoproetus lacheni shows well on a nice piece of matrix.

Here is a inexpensive trilobite of the species Hollardops aithassainorum from the Jebel Zquilma.

Here is a fantastic trilobite of the quite rare genus  Cyphaspides from Jorf in Morocco.
The trilobite offers a attractive curved posing and a detailed preservation.

Here is a large "Solnhofen Starfish" of the species  Riedaster reicheli from Ried.
This Riedaster shows well centered on a unbroken plate and offers a quite detailed preservation.

This is a inexpensive example the "Eifel Trilobite" Gerastos  cuvieri  from Gees.

Here is a large "Eifel Trilobite" of the species Geesops schlotheimi together with a fragmentary preserved cephalon  of a lichid trilobite. The trilobite head may belongs to the species Radiaspis comes.

This prone "Eifel Trilobite" belongs to the species Gerastos  cuvier.
It was found at the classical site  near Gees that is also known as "Trilobite Fields"or  "Pelm-Salmer Weg”.

This is a detailed trilobite of the relative rare species Whittardolithus inopinatus from Wales.

Here is a exhuvia of a "Nevada Trilobite" of the species Nephrolenellus geniculatus .

Here is a fantastic Weeks Trilobite of the rare species Genevievella granulatus in a ventral preparation. This Genevievella granulatus shows a top preservation, the hypostome is present and perfectly in situ preserved.

Here is a nice and quite large Modocia typicalis from the Marjum Formation of Utah.

This is a quite rare "Utah Trilobite" of the species Bolaspidella contracta from the Marjum Formation.

This "Utah Trilobite" belongs to the species  Asaphiscus wheeleri and offers a nide and detailed preservation. For a Brachyaspidion microps it is a large specimen.

Here is a "Agnostid Trilobite" of the species Ptychagnostus atavus from Utah.

This is  a nice Utah Trilobite of the species Asaphiscus wheeleri from the Wheeler Shale.

Here is a rare Rejkocephalus rotundatus from the Cambrian Jince fm.
This trilobite offers a good  preservation and shows well in the nice matrix.

This is a rare trilobite of the the spicies Actinopeltis carolialexandri from the Ordovician of Morocco.

Here is a rare example of the Trilobite  Mesolenellus svalbardensis from the lower cambrian of Svalbard.

This is a quite large trilobite of the species  Aulacopleura konincki from the Liten Formation of Lodenice.

Here is a Trilobite of the species Elrathia kingi from Utah.