Here is a rare Cambrian Trilobite from Nevada that belongs likely to a new Alokistocarid species. It resembles strongly Piochaspis sellata that also occurs in the Chisholm Shale.

Here is a detailed US Trilobite if the species Ampyxina bellatula from the Ordovician Maquoketa Formation of Missouri.

This is a classical US Trilobite if the species Ampyxina bellatula from the Ordovician Maquoketa Formation of Missouri.

Here is a classcal Utah Trilobite of the species Asaphiscus wheeleri from the Wheeler Formation.

This is a very detailed Utah Trilobite of the species Bolaspidella housensis.
This small but fine Trilobite has the spines on the axial rings nicely preserved.
 

Thisis a nice and large New York Trilobite of the species Bumastus ioxus  from the classical Rochester shale from Middleport. This piece features also some typical fauna of the Rochester shale.

This is a Weeks Trilobite double from Utha with two specimens of the species Cedaria minor.

Here is a quite rare and quite large  example of a Dipleura dekayi from the middle Devonian of New York.
 

This is a beautiful trilobite from New York of the species Eldredgeops rana milleri from Devonian Moscow Formation.
 

Here is a nice and inexpensive example of the classic trilobite Eldredgeops rana milleri from the Devonian of New York.

Here is a relatively large and inexpensive specimen of a Utah trilobite of the species Elrathia kingi.

Here is a classical rilobite of the species Elrathia kingi from Wheeler Formation of Utah.

Here is a nice specimen of this typical Trilobite from the middle Cambrian Wheeler  Formation  of Utah.

Here is a nice  Elrathia kingii from the middle Cambrian of Utah.

This middle Cambrian trilobite from Nevada is a specimen of the species Elrathina antiqua. The trilobite genus Elrathia is almost unknown in Nevada.

This is a classical Ohio trilobite of the species Flexicalymene meeki.

Here is a relative rare Nevada trilobite of the species Glossopleura packi from Chisholm Shale of Nevada.

Here is an agnostid double of the species Hypagnostus parvifrons.

Here is one with several agnostid triobites of the species Itagnostus interstricta.