Dr. Rod Taylor on X: "#Trilobite body design showed some interesting modifications over their 250+ million year history. Harpes perradiatus, a #Devonian trilobite from Morocco, extended the cephalon margin as a bizarre
Harpes Trilobite - Fossil Specimen
1.75" New Type Of Harpes Trilobite - Ouzina, Morocco (#175207) For Sale - FossilEra.com