纵棒头虫目（Corynexochida）是属于三叶虫纲的其中一个目，生活于寒武纪至泥盆纪。纵棒头虫目三叶虫的胸部拥有2-12个环节，很少超过12个环节，通常为7-8个环节。

• Order Corynexochida - a site about the eight orders of trilobites.

Corynexochida is an order of trilobite that lived from the Lower Cambrian to the Middle Devonian. Like many of the other trilobite orders, Corynexochida contains many species with widespread characteristics.

The middle region of the cephalon (the glabella) is typically elongate, with the sides often spreading forward (pestle-shaped). Some species have glabellae that are effaced, meaning they are smooth and show little detail. The glabellar furrows (when not effaced) typically have a splayed arrangement. In most species, the hind pair on either side of the cephalon become spines that point sharply backwards, and the spinose tips of the anterior pairs of thoracic segments tend to become more and more forward directed toward the pygidium. The eyes are typically large. Pygidia are typically large, competing in size with the cephalon in some species.