Caenoidea
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| Caenoidea | |
|---|---|
 | |
| Caenis horaria | |
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Ephemeroptera |
| Suborder: | Pannota |
| Superfamily: | Caenoidea |
Caenoidea is a superfamily of mayflies in the suborder Pannota. Members of this superfamily can be distinguished from those of Ephemerelloidea by the fact that the gills of the nymphs are filamentous.[1]
The following families are recognised:[2]