This is a collection of numerous fossil vertebrae from mostly prehistoric sharks with some large fish fossil vertebrae included. The fish are most likely prehistoric swordfish. Countless time scuba diving was spent to make this collection. These would be great as teaching aids, gifts, for unique jewelry, or as a really cool display group with fossil shark teeth of the same age. The vertebrae are probably from Mako (Isurus), Great White, Bull, Lemon and Hammerhead sharks of the Miocene / Pliocene Period. They are all as found, varying in colors based on the sediment chemistry in which they were once buried at the river bottom.