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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RARE Arnioceras semicostides Fossil Ammonite Multi-Block – Lower Sinemurian, Jurassic, Charmouth, UK – Genuine Specimen with COA
£48.00
This is a rare Arnioceras semicostides fossil ammonite multi-block, dating back to the Lower Sinemurian stage of the Early Jurassic period (~199-195 million years ago), discovered in Charmouth, United Kingdom. Arnioceras is a genus of early Jurassic ammonites, known for their distinctive evolute shells with strong radial ribbing. This multi-block specimen features multiple ammonites embedded in matrix, offering a stunning natural display of a Jurassic marine ecosystem.
The Charmouth region of the Jurassic Coast is world-famous for its exceptional fossil deposits, particularly ammonites from the Lower Lias Formation. This fossilized ammonite cluster provides insight into ancient marine environments and is a highly collectible and scientifically valuable piece.
Geological Information:
- Formation: Lower Lias Formation
- Stage: Lower Sinemurian (~199-195 million years old)
- Location: Charmouth, United Kingdom
- Depositional Environment: Shallow marine seafloor with fine-grained sediment accumulation
Fossil Characteristics:
- Multiple Arnioceras ammonites preserved in matrix
- Evolute shell structure with well-defined radial ribbing
- Exceptional preservation of suture patterns and shell details
- Rare Early Jurassic multi-specimen fossil from the UK
Key Features:
- Authentic Arnioceras semicostides fossil ammonite multi-block
- Rare and visually impressive Lower Jurassic ammonite cluster
- From the Alice Purnell Collection
- 100% genuine specimen with Certificate of Authenticity
Scale Rule / Cube = 1cm – Please refer to the photos for accurate sizing.
All fossils are securely packaged for worldwide shipping.
(Actual as seen)
Out of stock
Description
This is a rare Arnioceras semicostides fossil ammonite multi-block, dating back to the Lower Sinemurian stage of the Early Jurassic period (~199-195 million years ago), discovered in Charmouth, United Kingdom. Arnioceras is a genus of early Jurassic ammonites, known for their distinctive evolute shells with strong radial ribbing. This multi-block specimen features multiple ammonites embedded in matrix, offering a stunning natural display of a Jurassic marine ecosystem.
The Charmouth region of the Jurassic Coast is world-famous for its exceptional fossil deposits, particularly ammonites from the Lower Lias Formation. This fossilized ammonite cluster provides insight into ancient marine environments and is a highly collectible and scientifically valuable piece.
Geological Information:
- Formation: Lower Lias Formation
- Stage: Lower Sinemurian (~199-195 million years old)
- Location: Charmouth, United Kingdom
- Depositional Environment: Shallow marine seafloor with fine-grained sediment accumulation
Fossil Characteristics:
- Multiple Arnioceras ammonites preserved in matrix
- Evolute shell structure with well-defined radial ribbing
- Exceptional preservation of suture patterns and shell details
- Rare Early Jurassic multi-specimen fossil from the UK
Key Features:
- Authentic Arnioceras semicostides fossil ammonite multi-block
- Rare and visually impressive Lower Jurassic ammonite cluster
- From the Alice Purnell Collection
- 100% genuine specimen with Certificate of Authenticity
Scale Rule / Cube = 1cm – Please refer to the photos for accurate sizing.
All fossils are securely packaged for worldwide shipping.
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