Harpetido aff. Harpes perradiatus Era: Paleozoic Period: Middle Devonian Stage: Eifelian (397.5 - 391.8 Ma) Location: Bou Dib, near Alnif Horizon: Thysanopeltis &Harpes Formation: The Otfal Province: Tinghir Region: Drâa-Tafilalet, Morocco Description: The conservation and cleaning of this specimen is so professional that the light passes through its shell. Sandblasted fossil, well preserved, 100% natural, no restoration or spines from another trilobite or paint. his species is renowned for its elaborate spines and highly sculpted exoskeleton, features that make it particularly desirable among collectors. Dating back to the Upper Devonian period (approximately 400–380 million years ago), this trilobite lived in ancient marine environments long before the age of dinosaurs. Rapid burial by underwater sediment flows allowed for remarkable preservation of fine structural details, including the pronounced thoracic segmentation.