Fossils
(374 upcoming items)Fossils
Fossils have given valuable clues to Earth's past, making them great collectible items. Paleontologists and collectors worldwide are constantly seeking hidden treasures with a strong interest in dinosaurs and other fossil giants, making them collectibles of great value. In order to be qualified as a fossil, an object must be at least several thousand years old. However, the oldest fossils have been determined to be about three and a half billion years old. A fossil is created when a plant or animal that died millions of years ago leaves behind a skeleton, bones, or other organic matter. When these bones or organic materials disintegrate or fall apart over a long time, they sometimes get preserved in a stone or petrified into a hard substance, allowing people to find their impressions or remnants. A fossil can be anything, from a preserved footprint to arthropods, fish teeth, mollusks, animal teeth, dinosaur bones, and plant fossils. Fossils can be preserved in ice, river sediment, volcanic ash, tar, desert sandstone, globs of hardened tree sap etc. They are often categorized as body fossils, remains of plants and anima










![Mosasaur 'Marine Dinosaur' Fossil Jaw Fragment with Teeth: Cretaceous Period, circa 145-65 million years B.P. A composite jaw fragment set with four teeth. 340 grams, 18.5 cm (7 1/4 in.). [No Reserve] From Morocco. From a Cambridgeshire, UK, collection. The M](https://p1.liveauctioneers.com/1191/405225/225127571_1_x.jpg?height=280&quality=70&sharpen=true&version=1769779778&width=280)
![Polished Fossil Orthoceras Bookend Pair: Devonian Period, circa 400 million years B.P. Formed of fossiliferous stone with Orthoceras sp. specimens. 1.96 kg total, 11.7 cm each (4 5/8 in.). [2, No Reserve] From Morocco. From a Cambridgeshire,](https://p1.liveauctioneers.com/1191/405225/225127565_1_x.jpg?height=280&quality=70&sharpen=true&version=1769779778&width=280)


![Polished Composite Ammonite Plate: Jurassic Period, circa 199-145 million years B.P. A circular composite plate composed of overlapping Cleoniceras sp. ammonites. 617 grams, 22.5 cm (8 7/8 in.). [No Reserve] From Madagascar. From a Lin](https://p1.liveauctioneers.com/1191/405225/225127653_1_x.jpg?height=280&quality=70&sharpen=true&version=1769779778&width=280)



![Fossil Brittle Star: Ordovician Period, circa 485-443 million years B.P. An irregular matrix with Ophiuroidea sp. specimen; repaired. 367 grams, 13.2 cm (5 1/4 in.). [No Reserve] From a Lincolnshire, UK, collection. TimeL](https://p1.liveauctioneers.com/1191/405225/225127576_1_x.jpg?height=280&quality=70&sharpen=true&version=1769779778&width=280)



![Mosasaur 'Marine Dinosaur' Fossil Jaw Fragment with Teeth: Cretaceous Period, circa 145-65 million years B.P. A composite jaw fragment set with five teeth. 254 grams, 16 cm (6 1/4 in.). [No Reserve] From Morocco. From a Cambridgeshire, UK, collection. The Mos](https://p1.liveauctioneers.com/1191/405225/225127566_1_x.jpg?height=280&quality=70&sharpen=true&version=1769779778&width=280)




