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Characiform

Characiformes
Temporal range: Early Cretaceous–Recent
Schmucksalmler (1).jpg
Hyphessobrycon bentosi
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Superorder: Ostariophysi
Order: Characiformes
Regan, 1911
Families

Acestrorhynchidae
Alestidae
Anostomidae
Characidae
Chilodontidae
Citharinidae
Crenuchidae
Ctenoluciidae
Curimatidae
Cynodontidae
Distichodontidae
Erythrinidae
Gasteropelecidae
Hemiodontidae
Hepsetidae
Lebiasinidae
Parodontidae
Prochilodontidae
Serrasalmidae
Triporthidae
Salminopsidae 
Sorbinicharacidae 


Acestrorhynchidae
Alestidae
Anostomidae
Characidae
Chilodontidae
Citharinidae
Crenuchidae
Ctenoluciidae
Curimatidae
Cynodontidae
Distichodontidae
Erythrinidae
Gasteropelecidae
Hemiodontidae
Hepsetidae
Lebiasinidae
Parodontidae
Prochilodontidae
Serrasalmidae
Triporthidae
Salminopsidae 
Sorbinicharacidae 

Characiformes is an order of ray-finned fish, comprising the characins and their allies. Grouped in 18 recognized families, there are more than two thousand different species, including the well-known piranha and tetras.

Characiformes form part of a series called Otophysi within the superorder Ostariophysi. Otophysi contains three other orders, Cypriniformes, Siluriformes, and Gymnotiformes. Characiformes forms a group known as Characiphysi with Siluriformes and Gymnotiformes. Characiformes is the sister group to the orders Siluriformes and Gymnotiformes, though this has been debated in light of recent molecular evidence.


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Wikipedia

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