The Millipede order includes 24 families [1] [2] :
- Aspleniaceae Newman - Bone marrow , includes 2 genera
- Athyriaceae Alston - Tinea , includes 5 genera
- Blechnaceae Newman - Derbyankovy , includes 7 genera
- Cystodiaceae JRCroft , includes 1 genus
- Cystopteridaceae Shmakov - Bubble , includes 4 genera
- Davalliaceae MRSchomb. - Davallium , includes 2 genera
- Dennstaedtiaceae Lotsy - Dennstedtius , includes 10 genera
- Diplaziopsidaceae XCZhang & Christenh. includes 2 genera
- includes: Diplaziopsis , Homalosorus
- Dryopteridaceae Herter , nom. cons. - Thyroid , includes 35 genera in 2 subfamilies Dryopteridoideae and Elaphoglossoideae .
- Hemidictyaceae Christenh. & H. Schneid. includes 1 genus
- Hypodematiaceae Ching , includes 3 genera
- includes: Didymochlaena Hypodematium Leucostegia
- Lindsaeaceae C. Presl ex MRSchomb. - Lindsay , includes 7 genera
- includes: Lindsaea , Nesolindsaea , Odontosoria , Osmolindsaea , Sphenomeris , Tapeinidium , Xyropteris
- Lomariopsidaceae Alston - Lomariopsis , includes 4 genera
- includes: Cyclopeltis , Dracoglossum , Lomariopsis , Thysanosoria
- Lonchitidaceae C. Presl ex MRSchomb. includes 1 genus
- Nephrolepidaceae Pic.Serm. includes 1 genus
- Oleandraceae Ching ex Pic.Serm. includes 1 genus
- Onocleaceae Pic.Serm. - On- adhesive , includes 1 kind
- Polypodiaceae J.Presl & C.Presl - Millipede , includes 65 genera in 5 subfamilies Drynarioideae , Loxogrammoideae , Microsoroideae , Platycerioideae and Polypodioideae .
- Pteridaceae EDMKirchn. - Pteris , or Schifolia , includes 51 genera in 5 subfamilies Ceratopteridoideae , Cheilanthoideae , Cryptogrammoideae , Pteridoideae and Vittarioideae .
- Rhachidosoraceae XCZhang , includes 1 genus
- Saccolomataceae Doweld , includes 2 genera
- includes: Orthiopteris , Saccoloma
- Tectariaceae Panigrahi , includes 10 genera
- includes: Aenigmopteris , Arthropteris , Hypoderris , Pleocnemia , Psammiosorus , Psomiocarpa , Pteridrys , Tectaria , Triplophyllum , Wagneriopteris
- Thelypteridaceae Pic.Serm. - Teletheris , includes 5 genera
- Woodsiaceae Herter - Woodsian , includes 3 genera
Phylogenetic cladogram of the order [2] [3] :
| Polypodiales |
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| Saccolomataceae |
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| Cystodiaceae |
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| Lonchitidaceae |
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| Lindsaeaceae |
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| Pteridaceae |
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| Dennstaedtiaceae |
| | Eupolypods | | Eupolypods ii |
| Cystopteridaceae |
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| Rhachidosoraceae |
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| Diplaziopsidaceae |
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| Hemidictyaceae |
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| Aspleniaceae |
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| | Eupolypods i |
| Hypodematiaceae |
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| Dryopteridaceae |
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| Lomariopsidaceae |
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| Nephrolepidaceae |
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| Tectariaceae |
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| Oleandraceae |
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| Davalliaceae |
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| Polypodiaceae |
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