Redlichiina


Redlichiina is a suborder of the order Redlichiida of Trilobites. The suborder contains three superfamilies: Emuelloidea, Redlichioidea and Paradoxidoidea. These trilobites are some of the oldest trilobites known. They originated at the beginning of the Cambrian Period and disappeared at the end of the middle Cambrian.

Physiology

Thorax: Fulcrate or non-fulcrate, typically with many segments. The axis is infrequently spine-bearing.
Pygidium: Typically small, but can be larger and with many segments.