20059 - Top Quality 2 Associated Basseiarges mellishae Middle Devonian Trilobites Fossil Stoneware which is in a Cenomanian

which is in a Cenomanian fluvial sandstone in the Kem Kem Formation of Morocco

so lenses made from it exhibit less chromatic aberration

• Arenig of France

Crotalocephalus

The sharp and intact tips are a preservation feature very difficult to find and therefore it is one of the characteristics which influences the most in the objective valuation of a specimen

20059 - Top Quality 2 Associated Basseiarges mellishae Middle Devonian Trilobites Fossil Stoneware which is in a CenomanianBasseiarges sp, Corbacho and Lpez Soriano 2013 (trilobite) Trilobita Lichida Lichidae Association of two individuals of the highest quality, with a characteristic crystallization that offers a little impressive translucent aspect to each specimen. Two new species of Trochurinae trilobites from the Middle Devonian (Eifelian) of Southern Morocco