Fossils

Swimming Reptiles: Mosasaurs / Plesiosaurs / Turtles

Flying Reptiles: Pteranodons

Bony Fish: Xiphactinus / Gillicus / Saurodon / Bananogmius / Pachyrhizodus / Cimolichtys / Apsopelix / Enchodus / Ichthyodectes / Protosphyraena

Sharks: Cretoxyrhina / Squalicorax / Ptychodus / Rhinobatos

Invertebrates

Crinoids: Uintacrinus

Clams & Oysters: Inoceramus / Rudistes / Ostrea congesta

Cephalopods: Spinaptychus & Rugaptychus / Niobrarateuthis bonneri

Birds: Hesperornis / Ichthyornis

Other Niobrara fossils: Coprolites / Fossil Tree

Other Resources: Geology of Western Kansas / Bonner Fossil Hunters / Oceans of Kansas (off-site)

Complete Bananogmius Fossil Fish

Field picture of Bananogmius—notice the sail fin in the natural matrix (chalk) out in the fossil beds.

Barbara’s been fishing for a fossil!

Chuck Bonner and Barbara Shelton with the prepared fossil fish in the storage area of the Denver museum.

©2006 Keystone Gallery / Photos ©Barbara Shelton unless otherwise noted