Ellipsocephalus hoffi (Schlotheim)
Some Trilobites had no eyes. This would have been an adaptation to their environmental condition. Either very deep water or very muddy water. Beautifully preserved complete specimen from the classic site for this species.
Middle Cambrian, Jince Formation,H.lyelli Zone.
Mount Konicek, Jince, Czech Republic.
Trilobite : 1.8 cm long.
