<==o Simrothiellidae Salvini-Plawen, 1978
   |--o Birasoherpia Salvini-Plawen, 1978
   |  `-- B. triasialato Salvini-Plawen, 1978
   |--o Biserramenia Salvini-Plawen, 1967
   |  `-- B. psammobionta Salvini-Plawen, 1978
   |--o Cyclomenia Nierstrasz, 1902
   |  `-- C. holosericea Nierstrasz, 1902
   |--o Helicoradomenia Scheltema & Kuzirian, 1991
   |  |-- H. acredema Scheltema, 2000
   |  |-- H. bisquama Scheltema, 2000
   |  `-- H. juani Scheltema & Kuzirian, 1991
   |--o Plawenia Scheltema & Schander, 2000
   |  |-- P. schizoradulata (Salvini-Plawen, 1978)
   |  `-- P. sphaera Scheltema & Schander, 2000
   |--o Sialoherpia Salvini-Plawen, 1978
   |  `-- S. margaritacea (Koren & Daniellsen, 1877) [Solenopus margaritacea Koren & Daniellsen, 1877; Kruppomenia minima Nierstrasz, 1903; Simrothiella margritacea (Koren & Daniellsen, 1877; Simrothiella minima (Nierstrasz, 1903)]
   |--o Simrothiella Pilsbry, 1898 [Solenopus Sars, 1869; Kruppomenia Nierstrasz, 1903]
   |  |-- S. rhynchota Salvini-Plawen, 1978
   |  |-- S. aculeitecta Salvini-Plawen, 1978
   |  |-- S. borealis (Odhner, 1921) [Kruppomenia borealis Odhner, 1921]
   |  |-- S. delta (Scheltema, 2000) [Kruppomenia delta Scheltema, 2000]
   |  |-- S. levis (Scheltema, 2000) [Kruppomenia levis Scheltema, 2000]
   |  `-- S. abysseuropaea Salvini-Plawen, 2004
   |--o Spiomenia Arnolfsky, 2000
   |  |-- S. spiculata Arnolfsky, 2000
   |  |-- S. praematura Todt & Salvini-Plawen, 2003
   |  `-- S. phaseolosa Todt & Salvini-Plawen, 2003
   `--o Uncimenia Nierstrasz, 1903
      `-- U. neopolitana Nierstrasz, 1903

Reference(s):

 

Special thanks to:

Jos H. M. Dols, for gathering taxonomic information and species of these animals.