Cyprinodontiformes is an order of ray-finned fish comprising mostly small freshwater species, including many popular aquarium fish such as killifish and live-bearers. The order is closely related to, and sometimes combined with, the Atheriniformes; its members are colloquially called toothcarps, though they are not close relatives of the true carps, which belong to the separate superorder Ostariophysi.
Facts
Taxonomic Rank Sources
1. Wikipedia: Cyprinodontiformes
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