SYNOPSIS OF THE DESCRIBED OPILIOACARIDA OF THE WORLD
3/7/2005 
                                                         Recent        Fossil      Status
                                                      Gen.  Spec.    Gen.   Spec.
 
ORDER            Opilioacarida                          9      21      0       0 * 
SUPERFAMILY               Opilioacaroidea               9      21      0       0 
FAMILY                      Opilioacaridae              9      21      0       0 *