Temporal range: Carboniferous (300 - 0 Ma)
|Eurydice pulchra (Cirolanidae)|
Isopods are an order of peracarid crustaceans, including familiar animals such as woodlice and pill bugs. The name Isopoda derives from the Greek roots (iso-, meaning "same") and (podos, meaning "foot").
Isopods can grow up to half an inch. They are usually gray or brown or black, with an oval-shaped body. They have seven armor plates, called "pereonites," which protect them. They also have seven pairs of short legs. Isopods have two pairs of antennae; one pair feels along the ground.
Isopods have gills and need water to breathe. Since they live on land, and not in the water, Isopods must stay in moist places.