SYNOPSIS OF THE DESCRIBED GNATHOSTOMULIDA OF THE WORLD
7/5/2006 
                                                         Recent        Fossil      Status
                                                      Gen.  Spec.    Gen.   Spec.
 
PHYLUM Gnathostomulida                                 26      97      0       0   
 
CLASS      Bursovaginoidea                             23      69      0       0   
 
ORDER            Conophoralia                           3      23      0       0   
 
ORDER            Scleroperalia                         20      46      0       0   Complete
 
CLASS      Filospermoidea                               3      28      0       0   Complete
 
ORDER            Filospermoidea                         3      28      0       0   Complete