Gerastos sp Blind Trilobite

Trilobites Order Proetida Family Proetidae
Geologic Age: Devonian
Trilobite is 15 mm long
Jorf, Morocco
Comment: This proetid trilobite was blind. That is, secondarily blind, having descended from proetids with sight. Such secondary blindness is not a rare evolutionary event in nature nor trilobites, and is particularly seen in Order Agnostida and Asaphida Superfamily Trinucleioidea.

Also see: Moroccan Trilobites Evolutionary Secondary Blindness Among Trilobites Trilobite Eyes







Gerastos Blind  Proetida Trilobite

Gerastos Blind Moroccan Trilobite

Geratos Trilobite with Secondary Eye Loss

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