Infraorder Panagrolaimomorpha De Ley and Blaxter 2002 (roundworm)
Parent taxon: Tylenchina according to G. O. Poinar 2011
Sister taxon: Tylenchomorpha
Subtaxa: Panagrolaimoidea
Distribution: found only at Dominican amber (Poinar coll) (Miocene to Miocene of Dominican Republic)