Genuine 5" (Diplomystus Dentatus)
Genuine 5" (Diplomystus Dentatus)
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- This is an authentic fossil fish (Diplomystus Dentatus) from the Green River formation of Wyoming.
- This species of freshwater is Diplomystus Dentatus, a relatively common fish during its time. Diplomystus were very closely related to modern day herrings. Diplomystus would’ve lived around 50 million years ago in what is present day Wyoming.
- Diplomystus is an extinct genus of freshwater 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.
- All of our fossils come with Certificates of Authenticity.
- Limestone Dimensions 6.75" x 4.5"
- Fossil's Dimensions 4.75" x 3"
