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RARE Homagnostus obesus Trilobite Fossil – Upper Cambrian – Nant Ganol Meirionnydd Wales – Certified Genuine

£18.00

RARE Homagnostus obesus Trilobite Fossil

Upper Cambrian – Nant Ganol, Meirionnydd, North Wales, UK

This listing is for a rare and authentic fossil of the trilobite species Homagnostus obesus, collected from the renowned Upper Cambrian strata at Nant Ganol, Meirionnydd, North Wales. Trilobites from this locality are highly sought after due to their excellent preservation and significance within the Cambrian biostratigraphic record.

Geological & Palaeontological Details:

  • Fossil Type: Trilobite fossil (whole or partial, depending on preservation)
  • Species: Homagnostus obesus
  • Locality: Nant Ganol, Meirionnydd, Wales, UK
  • Geological Age: Upper Cambrian (Furongian)
  • Depositional Environment:
  • Fine-grained marine mudstones and siltstones
  • Low-energy offshore basin with anoxic bottom conditions aiding in exceptional fossil preservation
  • Order: Agnostida
  • Family: Agnostidae
  • Superfamily: Agnostoidea
  • Biozone Association: Homagnostus obesus is a key zonal fossil for late Cambrian biostratigraphy and may be linked to the H. obesus Zone or adjacent agnostid biozones
  • Formally Described By: Typically attributed to early 20th-century taxonomic work (possibly Howell, 1935)

Morphology Features:

  • Small, isopygous (head and tail shield of similar size)
  • Two-segmented thorax
  • Nearly smooth cephalon and pygidium
  • Typical of agnostid trilobites, adapted for pelagic (open water) lifestyles
  • May have functioned as planktonic or benthic detritivores

Scientific and Collectible Importance:

  • Homagnostus obesus is a biostratigraphically important trilobite species, often used for correlating Upper Cambrian rocks globally
  • Rare in well-preserved form, especially from classic British localities
  • Excellent for collectors, researchers, and anyone interested in early arthropod evolution or the Cambrian Explosion

Product Notes:

  • Photo shows the actual specimen for sale
  • Scale: 1cm rule/cube shown in photos – please review image for exact size
  • Includes a Certificate of Authenticity
  • Professionally handled and sourced from an established fossil collection

Our Guarantee:

All of our Fossils are 100% Genuine Specimens and come with a Certificate of Authenticity. Each fossil is carefully selected for quality and scientific interest.

Please feel free to contact us with any questions or for additional images and provenance.

(Actual as seen)

Out of stock

SKU: UF3926 Category:

Description

RARE Homagnostus obesus Trilobite Fossil

Upper Cambrian – Nant Ganol, Meirionnydd, North Wales, UK

This listing is for a rare and authentic fossil of the trilobite species Homagnostus obesus, collected from the renowned Upper Cambrian strata at Nant Ganol, Meirionnydd, North Wales. Trilobites from this locality are highly sought after due to their excellent preservation and significance within the Cambrian biostratigraphic record.

Geological & Palaeontological Details:

  • Fossil Type: Trilobite fossil (whole or partial, depending on preservation)
  • Species: Homagnostus obesus
  • Locality: Nant Ganol, Meirionnydd, Wales, UK
  • Geological Age: Upper Cambrian (Furongian)
  • Depositional Environment:
  • Fine-grained marine mudstones and siltstones
  • Low-energy offshore basin with anoxic bottom conditions aiding in exceptional fossil preservation
  • Order: Agnostida
  • Family: Agnostidae
  • Superfamily: Agnostoidea
  • Biozone Association: Homagnostus obesus is a key zonal fossil for late Cambrian biostratigraphy and may be linked to the H. obesus Zone or adjacent agnostid biozones
  • Formally Described By: Typically attributed to early 20th-century taxonomic work (possibly Howell, 1935)

Morphology Features:

  • Small, isopygous (head and tail shield of similar size)
  • Two-segmented thorax
  • Nearly smooth cephalon and pygidium
  • Typical of agnostid trilobites, adapted for pelagic (open water) lifestyles
  • May have functioned as planktonic or benthic detritivores

Scientific and Collectible Importance:

  • Homagnostus obesus is a biostratigraphically important trilobite species, often used for correlating Upper Cambrian rocks globally
  • Rare in well-preserved form, especially from classic British localities
  • Excellent for collectors, researchers, and anyone interested in early arthropod evolution or the Cambrian Explosion

Product Notes:

  • Photo shows the actual specimen for sale
  • Scale: 1cm rule/cube shown in photos – please review image for exact size
  • Includes a Certificate of Authenticity
  • Professionally handled and sourced from an established fossil collection

Our Guarantee:

All of our Fossils are 100% Genuine Specimens and come with a Certificate of Authenticity. Each fossil is carefully selected for quality and scientific interest.

Please feel free to contact us with any questions or for additional images and provenance.

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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