Axial lobe: central element of the thorax. Cephalon: head of a trilobite.

Ecdysis: process of molting whereby most arthropods intermittently shed their external skeleton in order to grow. Facial suture: break in the trilobite skeleton, usually around the eyes, that facilitated ecdysis.

Fixed cheek: part of the cephalon between the glabella and the facial suture; sometimes called the fixigena.

Free cheek: part of the cephalon outside the facial suture; sometimes called the librigena.

Glabella: raised part of the center of a trilobite head that protected the stomach.

Hypostome: lightly skeletonized cuticle that protected the mouth.

Pleural lobes: two lateral elements of the thorax. Pygidium: trilobite tail.

Thorax: main body of a trilobite, where the segments are.

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Survival Basics

Survival Basics

This is common knowledge that disaster is everywhere. Its in the streets, its inside your campuses, and it can even be found inside your home. The question is not whether we are safe because no one is really THAT secure anymore but whether we can do something to lessen the odds of ever becoming a victim.

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