Gerastos is a genus of proetid trilobite in the family Proetidae that lived between the Pragian and Eifelian of the Lower-Middle Devonian, spanning approximately 21 million years.[2]
It was described by Goldfuss in 1843.[2]
Gerastos has been found in the Devonian of Belgium, Germany, the Czech Republic and Morocco.[2]
Gerastos has holochroal eyes situated to the side of its enlarged glabella region of the cephalon. The surface of the cephalon can be smooth or covered with pustules.[3][4]
Length rarely exceeds 3 cm.
Gerastos is a genus of proetid trilobite in the family Proetidae that lived between the Pragian and Eifelian of the Lower-Middle Devonian, spanning approximately 21 million years.
It was described by Goldfuss in 1843.
