Monodon monoceros, 67.25 inch narwhal tusk CUT IN HALF Alamosaurus layers of fine grained limestone

layers of fine grained limestone yield well preserved fossils that offer the world's most complete look at an ancient fresh water lake environment

1---megaraptor claw 14 inch

Ornatocephalus was a terrestrial lizard with a prehensile tail

six distinct genera of Crocodilians can be recognized

the long-horned bison gave way to the ancient bison

Monodon monoceros, 67.25 inch narwhal tusk CUT IN HALF Alamosaurus layers of fine grained limestone67. 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