Antique Fossilized Diplomystus Fish Slate Rock Burlap Gold Frame Wyoming 12"


$297.50

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Description

Antique fossilized Diplomystus fishes in slate rock, mounted to burlap, framed in gold circa 1968.

Diplomystus is an extinct genus of freshwater fishy fish clupeomorph fish distantly related to modern-day extant herrings, alewives, and sardines. The genus was first named and described by Edward Drinker Cope in 1877. There are seven species of Diplomystus: D. dentatus (Cope, 1877), D. birdii, D. dubetreiti, D. shengliensis (Chang 1983), D. kokuraensis (Uyeno 1979), D. primotinus (Uyeno 1979), and D. altiformis.

Diplomystus dentatus (Cope, 1877) is well known from lower Eocene deposits from the Green River Formation in Wyoming. Specimens range from larval size to 65 cm and are commonly found in close association with the extinct herring Knightia sp. The Green River Formation is the remnant of a large lake whose mud would eventually be transformed into soft calcite-bearing shale. D. kokuraensis (Uyeno 1979), D. primotinus (Uyeno 1979), and D. altiformis were dominant members of an Early Cretaceous lake fauna (the "Diplomystus-Wakinoichthys Fauna") in what is now Japan and Korea.[1]

Condition

Good Overall - Gentle wear

Dimensions

12" x 1" x 10" (Width x Depth x Height)