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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2.5" Rare Scunthorpe Ammonite Fossil - Asteroceras semicostatum, Sinemurian, Jurassic, Yorkshire, UK
2.5" Rare Scunthorpe Ammonite Fossil - Asteroceras semicostatum, Sinemurian, Jurassic, Yorkshire, UK - Image 2
2.5" Rare Scunthorpe Ammonite Fossil - Asteroceras semicostatum, Sinemurian, Jurassic, Yorkshire, UK - Image 3
2.5" Rare Scunthorpe Ammonite Fossil - Asteroceras semicostatum, Sinemurian, Jurassic, Yorkshire, UK - Image 4

2.5″ Rare Scunthorpe Ammonite Fossil – Asteroceras semicostatum, Sinemurian, Jurassic, Yorkshire, UK

£360.00

This listing is for a rare and well-preserved Asteroceras semicostatum ammonite fossil from the Frodingham Ironstone Formation, Sinemurian, Jurassic of Conersby, Scunthorpe, Yorkshire, UK. A stunning specimen of this classic ammonite species, it showcases excellent ribbing and morphology, making it an exceptional collector’s piece.

Species Information:

  • Species: Asteroceras semicostatum
  • Geological Formation: Frodingham Ironstone
  • Age: Sinemurian, Early Jurassic (approximately 190 million years old)
  • Location: Conersby, Scunthorpe, Yorkshire, United Kingdom
  • Size: 2.5 inches

Key Features:

✔ Rare and well-defined ammonite fossil

✔ Excellent preservation with visible growth lines and sutures

✔ Originates from the famous Frodingham Ironstone site

✔ A must-have for fossil collectors and enthusiasts

Authenticity & Certification:

All of our fossils are 100% genuine specimens and come with a Certificate of Authenticity. The fossil shown in the photographs is the exact one you will receive.

Why Buy From Us?

We specialize in premium fossils, carefully selected for quality and authenticity. This ammonite is part of the Alice Purnell Collection, one of the largest and most respected collections of ammonites in the world.

Don’t miss this chance to own a genuine Jurassic Asteroceras ammonite fossil from one of Britain’s classic fossil sites. Buy with confidence!

(Actual as seen)

Out of stock

SKU: AF0329 Category:

Description

This listing is for a rare and well-preserved Asteroceras semicostatum ammonite fossil from the Frodingham Ironstone Formation, Sinemurian, Jurassic of Conersby, Scunthorpe, Yorkshire, UK. A stunning specimen of this classic ammonite species, it showcases excellent ribbing and morphology, making it an exceptional collector’s piece.

Species Information:

  • Species: Asteroceras semicostatum
  • Geological Formation: Frodingham Ironstone
  • Age: Sinemurian, Early Jurassic (approximately 190 million years old)
  • Location: Conersby, Scunthorpe, Yorkshire, United Kingdom
  • Size: 2.5 inches

Key Features:

✔ Rare and well-defined ammonite fossil

✔ Excellent preservation with visible growth lines and sutures

✔ Originates from the famous Frodingham Ironstone site

✔ A must-have for fossil collectors and enthusiasts

Authenticity & Certification:

All of our fossils are 100% genuine specimens and come with a Certificate of Authenticity. The fossil shown in the photographs is the exact one you will receive.

Why Buy From Us?

We specialize in premium fossils, carefully selected for quality and authenticity. This ammonite is part of the Alice Purnell Collection, one of the largest and most respected collections of ammonites in the world.

Don’t miss this chance to own a genuine Jurassic Asteroceras ammonite fossil from one of Britain’s classic fossil sites. Buy with confidence!

Additional information

Weight 0.1 g
Dimensions 10 × 10 × 10 cm
Era

Jurassic
Origin

United Kingdom

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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