After Adl et al., 2005

<==o Eumycetozoa Zopf, 1884 emend. Olive, 1975 [Mycetozoa de Bary, 1873]
   |?- Copromyxa
   |?- Copromyxella
   |?- Fonticula
   |--o Protostelia Olive, 1975
   |  |?- Microglomus
   |  |?- Nematostelium
   |  |?- Tychosorium
   |  |--o Cavosteliidae
   |  |  `-- Cavostellium
   |  |--o Ceratiomyxidae
   |  |  |-- Ceratiomyxa
   |  |  `-- Ceratiomyxella
   |  `--o Protosteliidae
   |     `-- Protostelium
   |--o Myxogastria Macbride, 1899 [Myxomycetes Link, 1833 emend. Haeckel, 1866] (slime molds; limasienet)
   |  |-- Arcyria
   |  |-- Badhamia
   |  |-- Barbyella
   |  |-- Brefeldia
   |  |-- Comatricha
   |  |-- Cribraria
   |  |-- Diachea
   |  |-- Diderma
   |  |-- Dydimium
   |  |-- Fulico
   |  |-- Lamproderma
   |  |-- Leocarpus
   |  |-- Lepidoderma
   |  |-- Lycogala
   |  |-- Macbrideola
   |  |-- Metatrichia
   |  |-- Perichaena
   |  |-- Tubulifera
   |  |-- Willkommlangea
   |  |--o ECHINOSTELIIDA
   |  |  `-- Echinostelium
   |  |--o STEMONITIDA
   |  |  `-- Stemonitis
   |  |--o TRICHIIDA
   |  |  `-- Trichia
   |  |--o PHYSARIDA
   |  |  |-- Physarella
   |  |  `-- Physarum
   |  `--o LICEIDA
   |     `-- Licea
   `-- Dictyostelia Lister, 1909 emend.Olive, 1970

After “The Tree of Life”

<==o Eumycetozoa
   |--o Protostelia Olive, 1975
   |  |--o ECHINOSTELIOPSIDA
   |  `--o PROTOSTELIIDA
   |     |-- Cavosteliidae
   |     |-- Ceratiomyxidae
   |     `-- Protosteliidae
   `--o Myxogastria Macbride, 1899 [Myxomycetes Link, 1833 emend. Haeckel, 1866] (slime molds; limasienet)
      |--o ECHINOSTELIIDA
      |--o STEMONITIDA
      |--o TRICHIIDA
      |--o PHYSARIDA
      `--o LICEIDA

After Parker, 1982

<==o Myxomycota (slime molds; limasienet)
   |-- Acrasiomycetes
   `--o Myxomycetes Link, 1833 emend. Haeckel, 1866
      |--o Ceratiomyxomycetidae
      |  `--o Ceratiomyxales
      |     `-- Ceratiomyxaceae
      |--o Myxogastromycetidae
      |  |--o Physarales
      |  |  |-- Physaraceae
      |  |  `-- Didymiaceae
      |  |--o Liceales
      |  |  |-- Liceaceae
      |  |  |-- Reticulariaceae
      |  |  `-- Cribrariaceae
      |  |--o Echinosteliales
      |  |  |-- Clastodermataceae
      |  |  `-- Echinosteliaceae
      |  `--o Trichiales
      |     |-- Dianemaceae
      |     `-- Trichiaceae
      `--o Stemonitomycetidae
         `--o Stemonitales
            `-- Stemonitaceae

Reference(s):