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Laviniinae is a subfamily of freshwater Actinopterygii belonging to the family Leuciscidae, the family which includes the , , Phoxinus and related fishes. Members of this subfamily are known as western chubs or the western clade (WC) of minnows. As the name suggests, most members of this clade are found in western North America aside from Chrosomus, which is found in eastern North America.
One of the largest North American cypriniforms and the largest member of Leuciscidae, the Colorado pikeminnow ( Ptychocheilus lucius), belongs to this subfamily.
Fossil remains of a large minnow presumably related to Ptychocheilus have been recovered from the Priabonian or Rupelian-aged deposits of the Cypress Hills Formation in Saskatchewan.
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