Cephalon (arthropod head)

As Cephalon ( κεφαλή AltGr head, German title:. Cephalon or head portion ) refers to the first Tagma many cancers and trilobites.

The trilobite is located on the top of the compound eyes, the fixed cheeks ( Fixigena ), the free cheeks ( Librigena ), the hem including the Dublüren ( the tips of the hem to the back) and the so-called glabella which of the foothills of the spindle ( Axiallobus ) is on the head plate. On the bottom there is the rostral and the hypostome, which probably belonged to mouth apparatus.