| Ascaridina | |
|---|---|
 | |
| AdultToxocara canis (Ascaridoidea:Toxocaridae) | |
Scientific classification | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Nematoda |
| Class: | Chromadorea |
| Order: | Ascaridida |
| Suborder: | Ascaridina |
| Superfamilies | |
5, see text | |
ThesuborderAscaridina contains the bulk of theAscaridida,parasiticroundworms with three "lips" on the anterior end. The Ascaridida were formerly placed in thesubclassRhabditia by some, but morphological andDNA sequence data rather unequivocally assigns them to theSpiruria. TheOxyurida andRhigonematida are occasionally placed in the Ascaridina assuperfamily Oxyuroidea, but while they seem indeed to be Spiruria, they are not as close toAscaris as such a treatment would place them.[1]
These "worms" contain a number of importantparasites of humans anddomestic animals, namely in thesuperfamilyAscaridoidea.
Some paleoparasitological studies have described groups belonging to Ascaridina infecting fish, reptiles, and mammals in the Mesozoic.[2]
The Ascaridina contain the followingsuperfamilies andfamilies:[3]
SuperfamilyAscaridoidea SuperfamilyCosmocercoidea SuperfamilyHeterakoidea
| SuperfamilySeuratoidea SuperfamilySubuluroidea
|
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