Fossils for Sale - High-quality BRITISH and WORLDWIDE Fossils. An impressive selection of fossils, including Ammonites, Trilobites, Belemnites, Fossil Fish, Fossil Shark Teeth, Fossilised Insects in Amber, Dinosaurs, and Reptiles. UK Fossils was formed in 1988 and collects and preps our own fossils in the heart of the Jurassic Coast, collecting fossils from Lyme Regis, Charmouth and Somerset. Our passion for fossils is reflected in our carefully curated collection, which includes some of the rarest and most unique specimens available.

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Dinosaur stomach stone fossil - gastrolith jurassic usa

Dinosaur stomach stone fossil – gastrolith jurassic usa

Original price was: £22.80.Current price is: £15.96.

(Actual as seen)

Only 1 left in stock

SKU: FP9104 Category:

Description

SScale cube=1cm: Full sizing please see photo

All of our Fossils are 100% Genuine Specimens & come with a Certificate of Authenticity!

Specimen: Gastrolith Stomach Stone
 Age: Morrson Formation, Jurassic
Location: Colorado, USA

This Gastrolith is from a Dinosaurs gastrointestinal tract. These stones are retained in the muscular gizzard and were used to grind food in animals who lacked suitable grinding teeth.

Such stones are identified by ensuring all three of the following are true: Firstly, the stone is unlike the rock found in its geological vicinity; Secondly, the stones are both rounded and polished as they turned and rolled inside the dinosaur; and Thirdly, the stones were found with the fossils of the dinosaur which ingested it. This provides enough evidence to clarify that these are genuine stomach stones.

ACTUAL AS SEEN: The image shows the EXACT unique specimen you will receive. Measurements are as accurate as possible, though be aware measuring precise dimensions can be difficult from irregular shaped items. Whilst we portray colours as close to life-like as we can, colours will vary if taken in sunlight, indoors, from monitor to monitor and device to device. The scale cube in the photo is 1cm to give a visual size.

Additional information

Origin

USA
Era

Jurassic

Jurassic Information

The Jurassic Period (201–145 million years ago) was the golden age of dinosaurs, with iconic species like Brachiosaurus, Stegosaurus, and Allosaurus dominating the land. It was a time of warm, humid climates, with high sea levels that created vast shallow seas, supporting abundant marine reptiles, ammonites, and early coral reefs. The first birds, such as Archaeopteryx, evolved from small theropod dinosaurs, while early mammals remained small and nocturnal. Lush forests of cycads, conifers, and ferns covered the land, providing food for giant herbivores. The breakup of the supercontinent Pangaea accelerated, shaping Earth's geography and setting the stage for the diverse ecosystems of the Cretaceous.

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