Keywords: Phacops enrolled.png en Enrolled Phacops Devonian Morrocco ; a the specimen in several dorsal and frontal views; b particular of the coaptative structures vincular furrow present in the cephalic doublure aimed to lock the seal between the margins of cephalon and pygidium ; c lateral views own Antonov 02/04/2010 Phacopida fossils Trilobite anatomy Phacops fossils |