This is an inexpensive specimen of an Ampyx linleyensis together with a negative specimen of an agnostid pygidium of the very rare species Corrugatagnostus cornutus. The Ampyx is about 23 mm long.

This is a rare trilobite of the species Asaphellus homfrayi from the Lower Ordovician of Shropshire.

Here is a detailed trilobite from England of the species Barrandia homfrayi

This is an inexpensive trilobite of the species Bergamia prima from Wales.
 

Here is a rolled up trilobite of the species Bettonolithus chamberlaini from Gilwern Hill.

Here is a large specimen of Barrandia homfrayi with very fine preserved Details.

Here is a good trilobite of the species Dionide turnbulli  from the Llanvirn of the United Kingdom.

Here is a inexpensive trilobite of the species Gravicalymene arcuata from the upper Ordovician of Wales.

Here is a rather large specimen of a trilobite of the species Ogygiocarella angustissima from the Didymograptus artus biozone of Wales. 

Here is a classic trilobite double with two specimens of the species Ogygiocarella debuchii. The two trilobites are 25 and 28 mm long. 

Here is an Ogygiocarella debuchii from the Llandeilo of the Bethlehem Quarry near Llandeilo in South Wales.
 

This very rare trilobite from the Upper Cambrian of North Wales belongs to the species Olenus micrurus.

This is a juvenile trilobite of the species Porterfieldia punctata from the Arenig of South Wales.
This Porterfieldia is a Meraspis stage with a length of about 9 mm.

This is a trilobite of the species Porterfieldia punctata from the Arenig of South Wales. 

Here is a trilobite of the species Stapeleyella inconstans from the Hope Shales of Shorpshire.
 

This is an inexpensive specimen of a trilobite of the rare species Whittardolithus inopinatus from the Ordovician of Shropshire.