Introduction
Worldwide. Usually in soil. Some are herbivorous, others predaceous, actively hunting small arthropods. 7-9 Families (5 in North America), 800 Species (70 in North America).
The fossil record of diplurans is sparse; there is an apparent Dipluran from the Carboniferous.
Derivation of name: diploos - double, oura - tail, referring to the two prominent cerci.
