Order Calymenida
Calymemines had the highly lobed, furrowed glabella
with eye stalks. They were distinguishable by the highy lobed
body. Sometime, this group is classified as a suborder of Phacopida. Levi-Setti (1993) considers
that they are more related to the Harpina
and Trinucleida than Phacopida.
An enrolled trypical Calymenine (Prothero, 1998)
