Agassiceras belongs to the psiloceratacean family, Arietitidae, and is characterized by being compressed with a sharp venter and feeble straight ribs that may bifurcate near the umbilical edge.
Agassiceras belongs to the psiloceratacean family, Arietitidae, and is characterized by being compressed with a pointed ventral surface and weak straight ribs that may split near the umbilical edge.