This is a rarely offered trilobite of the species Colpocoryphe grandis from Portugal.
 

This slab features a beautifully preserved trilobite trackway of the species Cruziana furcifera from the Ordovician period in Portugal. The traces originate from a temporary outcrop near Penha Garcia. Cruziana furcifera is characteristic of the Armorican Quartzite, with similar finds also known from Spain.

Here is a detailed Valongo Trilobite of the species Ectillaenus giganteus with both Librigena.

Here is a large Portuguese Trilobite of the species Ectillaenus giganteus.
 

Here is a classic Valongo trilobite of the species Ectillaenus giganteus.
 

Here is a isolated Trilobite of the species Neseuretus tristani that comeses together with its Negative.

Here is a beautiful Portuguese trilobite of the species Placoparia cambriensis from the well-known Canelas quarry in the Arouca Geopark.

This trilobite of the genus Prionocheilus from Portugal is a rare and detailed specimen that is available at a reasonable price.