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Rare Double Parabolina bucephalus Trilobite Fossil – Upper Cambrian, Cwmhesgyn Formation, Craig-y-Dinas, Wales
Rare Double Parabolina bucephalus Trilobite Fossil – Upper Cambrian, Cwmhesgyn Formation, Craig-y-Dinas, Wales - Image 2

Rare Double Parabolina bucephalus Trilobite Fossil – Upper Cambrian, Cwmhesgyn Formation, Craig-y-Dinas, Wales

Original price was: £60.00.Current price is: £54.00.

RARE Double Parabolina bucephalus Fossil Trilobite

Cwmhesgyn Formation – Upper Cambrian

Craig-y-Dinas, Merioneth Series, Wales, UK

This listing is for an exceptional double specimen of the trilobite Parabolina bucephalus, one of the rarer olenid trilobites from the Upper Cambrian of Wales. This specific fossil comes from the Cwmhesgyn Formation at Craig-y-Dinas, a classic site within the Merioneth Series. These trilobites are highly sought after by collectors and researchers alike due to their biozone specificity and limited geographic distribution.

Geological & Palaeontological Details:

  • Species: Parabolina bucephalus
  • Fossil Type: Double trilobite specimen
  • Locality: Craig-y-Dinas, North Wales, UK
  • Formation: Cwmhesgyn Formation
  • Series: Merioneth Series
  • Age: Upper Cambrian (Furongian Series)
  • Biozone: Likely within the Parabolina bucephalus Biozone
  • Depositional Environment: Deep marine basin with low oxygen conditions—ideal for preserving olenid trilobites
  • Geological Stage: Upper Cambrian
  • Family: Olenidae
  • Superfamily: Olenoidea
  • Order: Ptychopariida
  • Formally Described By: Lake, 1906

Morphological Features:

  • Typical broad, semi-circular cephalon with a tapering glabella
  • Multi-segmented thorax with fine segmentation lines
  • Small pygidium
  • Exoskeleton adapted for life in dysoxic environments
  • Thin-shelled, with some matrix impression preservation
  • Excellent preservation of two individuals on one matrix, providing added scientific and display value

Why This Fossil is Special:

  • Rare double specimen – difficult to find in this quality
  • Craig-y-Dinas is one of the few classic Upper Cambrian sites in Britain with documented biozone fauna
  • Olenid trilobites such as Parabolina are biozone indicators—highly valuable in biostratigraphy
  • Specimens from this formation are rarely available on the open market

Product & Purchase Info:

  • You will receive the exact fossil shown in the photographs
  • Scale Rule = 1cm square (see photos for precise size)
  • Comes with a Certificate of Authenticity
  • Ethically sourced and professionally cleaned and prepared
  • Ideal for academic study, museum-quality display, or high-end fossil collections

Our Guarantee:

All of our Fossils are 100% Genuine Specimens and come with a Certificate of Authenticity. This specimen has been hand-selected for its rarity and exceptional preservation.

We welcome any questions—please feel free to get in touch for more information or additional images.

(Actual as seen)

Only 1 left in stock

SKU: UF3919 Category:

Description

RARE Double Parabolina bucephalus Fossil Trilobite

Cwmhesgyn Formation – Upper Cambrian

Craig-y-Dinas, Merioneth Series, Wales, UK

This listing is for an exceptional double specimen of the trilobite Parabolina bucephalus, one of the rarer olenid trilobites from the Upper Cambrian of Wales. This specific fossil comes from the Cwmhesgyn Formation at Craig-y-Dinas, a classic site within the Merioneth Series. These trilobites are highly sought after by collectors and researchers alike due to their biozone specificity and limited geographic distribution.

Geological & Palaeontological Details:

  • Species: Parabolina bucephalus
  • Fossil Type: Double trilobite specimen
  • Locality: Craig-y-Dinas, North Wales, UK
  • Formation: Cwmhesgyn Formation
  • Series: Merioneth Series
  • Age: Upper Cambrian (Furongian Series)
  • Biozone: Likely within the Parabolina bucephalus Biozone
  • Depositional Environment: Deep marine basin with low oxygen conditions—ideal for preserving olenid trilobites
  • Geological Stage: Upper Cambrian
  • Family: Olenidae
  • Superfamily: Olenoidea
  • Order: Ptychopariida
  • Formally Described By: Lake, 1906

Morphological Features:

  • Typical broad, semi-circular cephalon with a tapering glabella
  • Multi-segmented thorax with fine segmentation lines
  • Small pygidium
  • Exoskeleton adapted for life in dysoxic environments
  • Thin-shelled, with some matrix impression preservation
  • Excellent preservation of two individuals on one matrix, providing added scientific and display value

Why This Fossil is Special:

  • Rare double specimen – difficult to find in this quality
  • Craig-y-Dinas is one of the few classic Upper Cambrian sites in Britain with documented biozone fauna
  • Olenid trilobites such as Parabolina are biozone indicators—highly valuable in biostratigraphy
  • Specimens from this formation are rarely available on the open market

Product & Purchase Info:

  • You will receive the exact fossil shown in the photographs
  • Scale Rule = 1cm square (see photos for precise size)
  • Comes with a Certificate of Authenticity
  • Ethically sourced and professionally cleaned and prepared
  • Ideal for academic study, museum-quality display, or high-end fossil collections

Our Guarantee:

All of our Fossils are 100% Genuine Specimens and come with a Certificate of Authenticity. This specimen has been hand-selected for its rarity and exceptional preservation.

We welcome any questions—please feel free to get in touch for more information or additional images.

Additional information

Era

Cambrian
Origin

United Kingdom

Cambrian Information

The Cambrian Period (541–485 million years ago) was the first period of the Paleozoic Era, marking a dramatic explosion of life known as the Cambrian Explosion. During this time, complex multicellular organisms rapidly diversified, giving rise to the first arthropods, mollusks, echinoderms, and chordates—early ancestors of vertebrates. The climate was generally warm, with high sea levels covering much of the continents, creating vast shallow seas where life thrived. Iconic creatures such as Trilobites, Anomalocaris, and Opabinia dominated the oceans, while the first primitive reefs formed. The Cambrian set the stage for the evolution of modern animal groups and the complexity of marine ecosystems.

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