Acanthophractida is an order of marine radiolarians in the subclass
Acantharia; skeleton includes a latticework shell and skeletal rods. They have a latticework shell, which can be spherical or ovoid and fused with the skeletal rods. The shell is concentric with the central capsule. "The body is usually covered with a single or double gelatinous sheath through which the skeletal rods emerge".
References
Radiolarian orders
{{Radiolarian-stub