Diplomystus is an extinct genus of freshwater clupeomorph fish distantly related to modern-day extant herrings, alewives, and sardines. A small schooling fish, Knightia made an abundant food source for larger Eocene predators. Quarried from Fossil Lake and unearthed by hand, this striking round table contains an 18.75″ Diplomsytus and two Knightia.