SYNOPSIS OF THE DESCRIBED RHAPTOTHYREIDA OF THE WORLD
7/8/2007 
                                                         Recent        Fossil      Status
                                                      Gen.  Spec.    Gen.   Spec.
 
ORDER            Rhaptothyreida                         1       2      0       0   Complete
FAMILY                      Rhaptothyreidae             1       2      0       0   Complete