the long-horned bison gave way to the ancient bison
layers of fine grained limestone yield well preserved fossils that offer the world's most complete look at an ancient fresh water lake environment
The coelacanth (pronounced SEE-la-canth) is a primitive lobe-finned fish (Crossopterygii) that appeared about 380 million years ago (about 150 million years before the dinosaurs appeared)
Ornatocephalus was a terrestrial lizard with a prehensile tail
which retain the same general appearance and are distinguished by various specific details
Monodon monoceros, 67.25 inch narwhal tusk CUT IN HALF Alamosaurus the long-horned bison gave way67. 25 Inches Long 2 Inches Diameter At Base The narwhal, or narwhale (Monodon monoceros), is a medium sized toothed whale and possesses a large "tusk" from a protruding canine tooth. It lives year round in the Arctic waters around Greenland, Canada, and Russia. It is one of two living species of whale in the Monodontidae family, along with the beluga whale. The narwhal males are distinguished by a long, straight, helical tusk, which is an elongated