Here is a detailed double of a Deanaspis goldfussi from the "Letná Formation". | |||
Location: | Letna in Prag, Barrandian area, Czech Republic | ||
| Size trilobite: | about 11 & 10 mm long | ||
| Age: | Middle Ordovician, Llandeilo, Letná Formation (About 464 mill. Years old) | ||