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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Rastellum oyster bivalve fossil 'alien' - genuine and intriguing paleontological specimen

Rastellum oyster bivalve fossil ‘alien’ – genuine and intriguing paleontological specimen

Original price was: £18.00.Current price is: £16.20.

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

**Please note: Some Fossils maybe propped up for photo purposes**

Specimen: Rastellum oyster bivalve ‘Fossil Alien’

Age: Cretaceous

Location: Marovoay, Mahajanga district, Madagascar

Size (picture scale cube=1cm):  89 x 36 x 36mm (3.5 x 1.42 x 1.42 inches)

 

More commonly known as ‘Fossil Alien’s these amazing bivalves are actually oyster shells. Bivalves are bilaterally symmetrical molluscs having two calcareous, asymmetrical shells (valves) – they include the clams, oysters, and scallops. In most bivalves, the two shells are mirror images of each other (the major exception is the oysters). They occur in marine, estuarine, and freshwater environments.

 

ACTUAL AS SEEN: The image shows the EXACT specimen you will receive. The specimen has been carefully hand selected and photographed. 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. Once this specimen is sold, we will update this listing with new similar selected item, with a new photo and dimensions.

(Actual as seen)

Only 1 left in stock

SKU: FP9200 Category:

Description

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

**Please note: Some Fossils maybe propped up for photo purposes**

Specimen: Rastellum oyster bivalve ‘Fossil Alien’

Age: Cretaceous

Location: Marovoay, Mahajanga district, Madagascar

Scale cube=1cm: Full sizing please see photo.

 

More commonly known as ‘Fossil Alien’s these amazing bivalves are actually oyster shells. Bivalves are bilaterally symmetrical molluscs having two calcareous, asymmetrical shells (valves) – they include the clams, oysters, and scallops. In most bivalves, the two shells are mirror images of each other (the major exception is the oysters). They occur in marine, estuarine, and freshwater environments.

 

ACTUAL AS SEEN: The image shows the EXACT specimen you will receive. The specimen has been carefully hand selected and photographed. 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. Once this specimen is sold, we will update this listing with new similar selected item, with a new photo and dimensions.

Additional information

Weight 10 g
Era

Jurassic
Origin

Madagascar

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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