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Fossils come in many forms: impressions of a tree's branching limbs
GREAT OXYGEN EVENT (3
Included stand may be clear acrylic or black metal depending on the thickness of the fossil
form through a process of accretion in which small bodies collide and coalesce into increasingly larger forms
Dinosaur Gastrolith - Gut Stone chelyabinsk Fossils come in many forms:Also known as gut or gizzard stones, gastroliths are common digestive aids among amphibians, reptiles, birds, and dinosaurs. their primary function is to help grind food matter. In dinosaurs, gastroliths are usually associated with sauropods, though they have also been discovered in ornithomimids, oviraptors, and some ornithischians. This Jurassic period gastrolith comes from the Morrison Formation in Colorado. There are two different sizes of
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