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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Trinucleus abruptus Trilobite Fossil - Llanvirn Ordovician - Gilwern Wales UK - Authentic
Trinucleus abruptus Trilobite Fossil - Llanvirn Ordovician - Gilwern Wales UK - Authentic - Image 2

Trinucleus abruptus Trilobite Fossil – Llanvirn Ordovician – Gilwern Wales UK – Authentic

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

Trinucleus abruptus Trilobite Fossil – Llanvirn Series, Ordovician – Upper Gilwern Quarry, Wales, UK

Add an exceptional piece of natural history to your collection with this genuine Trinucleus abruptus trilobite fossil. Sourced from the Upper Gilwern Hill Quarry in Powys, Wales, this specimen comes from the Llanvirn Series of the Middle Ordovician Period, dating to approximately 465 million years ago.

Trinucleus abruptus is a member of the family Trinucleidae, within the order Asaphida, and the superfamily Trinucleioidea. This genus is easily recognised by its broad cephalic fringe covered in sensory pits, reduced or absent eyes, and a semi-circular glabella. It was a benthic detritivore, believed to sift organic matter from soft marine sediments, making it a fascinating example of Ordovician trilobite ecology.

These fossils are typically associated with deep marine shelf environments, deposited in fine-grained mudstone, indicating a low-energy, anoxic basin setting ideal for preservation. The species is a useful biozonal indicator in British stratigraphy.

This carefully selected fossil is representative of the actual piece you will receive (see photo for sizing – scale cube = 1cm). All of our fossils are 100% genuine specimens and come with a Certificate of Authenticity. A must-have for serious collectors or anyone interested in early marine life and evolutionary history.

 

📖 Scientific Details (if applicable):

  • Species: Trinucleus abruptus
  • Family: Trinucleidae
  • Order: Asaphida
  • Superfamily: Trinucleioidea
  • Age: ~465 million years (Middle Ordovician)
  • Series: Llanvirn
  • Formation/Locality: Upper Gilwern Hill Quarry, Powys, Wales, UK
  • Ecology: Benthic detritivore
  • Preservation: Fine-grained mudstone; deep marine shelf

 

🌟 What You Receive:

  • One Trinucleus abruptus trilobite fossil (see sizing photo)
  • Certificate of Authenticity
  • Secure protective packaging

 

Add this rare and scientifically significant trilobite to your fossil collection today!

(Actual as seen)

Only 1 left in stock

SKU: FSR556 Category:

Description

Trinucleus abruptus Trilobite Fossil – Llanvirn Series, Ordovician – Upper Gilwern Quarry, Wales, UK

Add an exceptional piece of natural history to your collection with this genuine Trinucleus abruptus trilobite fossil. Sourced from the Upper Gilwern Hill Quarry in Powys, Wales, this specimen comes from the Llanvirn Series of the Middle Ordovician Period, dating to approximately 465 million years ago.

Trinucleus abruptus is a member of the family Trinucleidae, within the order Asaphida, and the superfamily Trinucleioidea. This genus is easily recognised by its broad cephalic fringe covered in sensory pits, reduced or absent eyes, and a semi-circular glabella. It was a benthic detritivore, believed to sift organic matter from soft marine sediments, making it a fascinating example of Ordovician trilobite ecology.

These fossils are typically associated with deep marine shelf environments, deposited in fine-grained mudstone, indicating a low-energy, anoxic basin setting ideal for preservation. The species is a useful biozonal indicator in British stratigraphy.

This carefully selected fossil is representative of the actual piece you will receive (see photo for sizing – scale cube = 1cm). All of our fossils are 100% genuine specimens and come with a Certificate of Authenticity. A must-have for serious collectors or anyone interested in early marine life and evolutionary history.

 

📖 Scientific Details (if applicable):

  • Species: Trinucleus abruptus
  • Family: Trinucleidae
  • Order: Asaphida
  • Superfamily: Trinucleioidea
  • Age: ~465 million years (Middle Ordovician)
  • Series: Llanvirn
  • Formation/Locality: Upper Gilwern Hill Quarry, Powys, Wales, UK
  • Ecology: Benthic detritivore
  • Preservation: Fine-grained mudstone; deep marine shelf

 

🌟 What You Receive:

  • One Trinucleus abruptus trilobite fossil (see sizing photo)
  • Certificate of Authenticity
  • Secure protective packaging

 

Add this rare and scientifically significant trilobite to your fossil collection today!

Additional information

Era

Ordovician
Origin

United Kingdom

Ordovician Information

The Ordovician Period (485–443 million years ago) was a time of marine expansion and biodiversity growth, following the Cambrian Explosion. Warm, shallow seas covered much of the continents, supporting trilobites, brachiopods, corals, and the first true reefs. Jawless fish (early vertebrates) diversified, and the first sea scorpions (eurypterids) became dominant predators. On land, the first primitive plants (moss-like bryophytes) began colonizing damp environments. The climate was initially warm, but by the late Ordovician, a major ice age caused a drastic drop in sea levels, triggering the Ordovician-Silurian mass extinction, which wiped out nearly 85% of marine species. Despite this, the period laid the foundation for the rise of more complex ecosystems in the Silurian.

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