(Ascaridida) (Ascaridida) is a biological order of the phylum Nematoda and class Chromadorea.
Acanthocheilidae
Anisakidae
Ascarididae
Ascaridiidae
Atractidae
Cosmocercidae
Crossophoridae
Cucullanidae
Dioctophymatidae
Goeziidae
Heterakidae
Heterocheilidae
Kathlanidae
Maupasinidae
Oxyuridae
Quimperiidae
Rhigonematidae
Schneidernematidae
Seuratidae
Soboliphymatidae
Subuluridae
Thelastomatidae
Toxocaridae
Aphelenchida
Araeolaimida
Ascaridida
Camallanida
Desmodorida
Desmoscolecida
Diplogasterida
Monhysterida
Rhabdiasida
Rhabditida
Spirurida
Strongylida
Tylenchida