Mukaan maailma rekisteriin merieläinlajien (15 tammikuu 2018) :
- superperhe Ilyplanoidea Faubel, 1984
- superperhe Leptoplanoidea Faubel, 1984
- perhe Apidioplanidae Bock, 1926
- perhe Candimboididae Faubel, 1983
- perhe Cestoplanidae Lang, 1884
- perhe Cryptocelidae Laidlaw, 1903
- perhe Didangiidae Faubel, 1983
- perhe Faubelidae Özdikmen, 2010
- perhe Gnesiocerotidae Marcus & Marcus, 1966
- perhe Leptoplanidae Stimpson, 1857
- perhe Notoplanidae Marcus & Marcus, 1966
- perhe Pleioplanidae Faubel, 1983
- Stylochoplanidae- perhe Faubel, 1983
- perhe Theamatidae Marcus, 1949
- superperhe Planoceroidea Pocket, 1925
- superperhe Stylochoidea Pocket, 1926
- perhe Callioplanidae Hyman, 1953
- perhe Cryptocelididae Laidlaw, 1903
- perhe Discocelididae Laidlaw, 1903
- perhe Latocestidae Laidlaw, 1903
- perhe Limnostylochidae Faubel, 1983
- perhe Planoceridae Lang, 1884
- perhe Plehniidae Bock, 1913
- perhe Polyposthiidae Bergendal, 1893
- perhe Pseudostylochidae Faubel, 1983
- Stylochidae Stimpson -perhe , 1857
- Stylochocestidae Bock -perhe , 1913
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Faubelin luokituksen mukaan:
- Ilyplanoidea Faubel, 1983
- Leptoplanoidea Stimpson, 1857
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Apidioplanidae Bock, 1926
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Candimboididae Faubel, 1983
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Cestoplanidae Lang, 1884
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Cryptocelidae Laidlaw, 1903
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Didangiidae Faubel, 1983
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Gnesiocerotidae Marcus & Marcus, 1966
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Leptoplanidae Stimpson, 1857
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Notocirridae Faubel, 1983
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Notoplanidae Marcus & Marcus, 1966
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Pleioplanidae Faubel, 1983
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Stylochoplanidae Faubel, 1983
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Theamatidae Marcus, 1949
- Stylochoidea Stimpson, 1857
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Callioplanidae Hyman, 1953 synonyymi Diplosoleniidae Bock, 1913
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Latocestidae Laidlaw, 1903
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Limnostylochidae Faubel, 1983
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Planoceridae Lang, 1884
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Plehniidae Bock, 1913
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Polyposthiidae Bergendal, 1893
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Pseudostylochidae Faubel, 1983
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Stylochidae Stimpson, 1857
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Stylochocestidae Bock, 1913
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