Here is a rare Valongo trilobite of the species Dionide mareki together with another trilobite of the species Placoparia tournemini. The Dionide itself is inclusive the genial spines about 46 mm long, the placoparia measures approx. 23 mm. Overall, this is a very displayabile trilobite plate from the Ordovician of Portugal. | |||
Location: | Rio Fereira, Valongo - Portugal | ||
Size Plate: | about 230 x 180 mm | ||
Age: | Middle Ordovician , Llandailo (Darriwilian) (about. 464. Ma) |