This trilobite from the Massie Shale is an exceptionally rare representative of the genus Bumastus, most likely assignable to the species Bumastus ambiguus. 

Here is a Agnostid Trilobite of the species Itagnostus interstrictus from the middle Cambrian of Utah.
This species till 2012 known as Peronopsis interstricta.

This fossil Solnhofen lobster of the species Palaeastacus fuciformis is preserved with exceptional detail and contrast.

This fossil Solnhofen crayfish is a specimen of the very rare species Buergerocaris psittacoides. 

This is a rather rare fossil specimen of  a Mole lobsters of the species Magila desmaresti , preserved with notable level of detail. 

This fossil Crustaceen is a good specimen of the relatively rare species Drobna deformis from Zandt.

Here is a fossil leaf branch of a dawn redwood of the species Metasequoia occidentalis from Montana.
 

Here is a nice Inzeria intia stromatolite plate from the Bitter Springs Formation in Australia.
This stromatolite plate shows an extraordinary play of colors and comes from a particularly interesting locality.

This is a rare cheirurid trilobite of the species Ceraurinus marginatus, originating from the Cobourg Formation in Canada.

Here we have a nice slice of banded iron from the Cleaverville Formation in the Pilbara region of Western Australia, dating back to the Archean-Proterozoic transition.

This is an exceptionally beautiful stromatolite slab from the early Precambrian of the United States.
A particularly striking aspect of this slab is its diverse array of microfossils. Due to the somewhat opaque nature of the specimen, these fossils can be observed even without thin-section preparation.

This plate shows two fossil ravens of the species Pinnixa galliheri in a beautiful condition. 

Here is a trilobite of the species Placoparia barrandei from a classic Rokycany concretion. This trilobite comes with the positive and negative side.
 

This piece shows a very nice Trilobite Track of the species Cruziana furcifera from the Ordovician period in Portugal. 

Dies ist ein vorzüglicher Portugal Trilobit der Art Eodalmanitina destombesi welcher schön mittig auf einer gossen und dekorativen Matrix sitzt. 

This is a beautiful trilobite of the species Greenops widderensis from Devonian of Canada. 

Here we have a nice slice of banded iron from the Cleaverville Formation in the Pilbara region of Western Australia, dating back to the Archean-Proterozoic transition.

This trilobite is an excellently preserved specimen of the species Cernuolimbus ludvigseni from the Upper Cambrian of the McKay Group. 

Here is a detailed trilobite plate with several specimens of the species Orygmaspis contracta from the Upper Cambrian of the McKay Group in Canada. 

This are some fossil branches and leaves of the seed fern of the species Neuropteris schlehani from the Carboniferous of the Sophia-Jacoba Mine.

Here are some fossil branches and leaves of the seed fern of the species Neuropteris schlehani from the Carboniferous of the Sophia-Jacoba Coal Mine.

Here are some inexpensive  fossil leaves branches of the genus Asterophyllites  from the Carboniferous, of the Sophia-Jacoba coal mine.

This piece features a beautiful Phacopid Trilobite double of the species Eldredgeops rana from the Devonian period of New York.

Here is a nice Inzeria intia stromatolite plate from the Bitter Springs Formation in Australia.