Setapedites
Setapedites is an extinct genus of Ordovician offacolid chelicerates from the Fezouata Formation of Morocco.[1] Setapedites is roughly 6 mm long excluding the telson, with eleven body segments and a prosoma with six appendage pairs.The abdominal somites have fused tergites and sternites forming ring-shaped structures, alongside two pairs of spines derived from the tergopleurae.[1] Setapedites shares similarities with Offacolus like the elongated chelicerae and limb arrangement, however the number of segments is closer to that of Dibasterium.The specific name abundantis translates to "abundant", referring to how common the genus is within the Fezouata Formation.