| Notopteroidei | |
|---|---|
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Osteoglossiformes |
| Suborder: | Notopteroidei |
| Families | |
|
Ostariostomidae (extinct) |
|
Ostariostomidae (extinct)
Notopteridae (featherfin knives)
Gymnarchidae (aba)
Lycopteridae (extinct)
Mormyridae (elephantfishes)
Notopteroidei is a suborder of the order Osteoglossiformes that contains the Gymnarchidae (aba), Notopteridae (feather backs and knifefish), mormyrids (the elephantfishes), as well as extinct families.