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Fossil Bryozoan Sea Floor Slab – Silurian Wenlock Limestone, Wrens Nest Dudley UK

Fossil Bryozoan Sea Floor Slab – Silurian Wenlock Limestone, Wrens Nest Dudley UK

Original price was: £14.40.Current price is: £12.96.

A beautifully preserved Fossil Sea Floor Slab featuring colonial bryozoans, sourced from the Wenlock Limestone Formation and dated to the Wenlockian Stage of the Silurian period (~428–423 million years ago). This fossil originates from the iconic Wrens Nest site in Dudley, West Midlands, UK — a globally important locality and one of the UK’s most famous fossil sites.

Bryozoans, often referred to as “moss animals,” are colonial, filter-feeding marine invertebrates that flourished in Silurian reef environments. This specimen displays a dense patch of bryozoan colonies encrusting the sea floor slab, capturing the biodiversity and ecological dynamics of ancient tropical marine settings.

Fossil Type: Colonial Bryozoans (marine invertebrates)

Geological Age: Silurian – Wenlockian Stage

Formation: Wenlock Limestone Formation

Depositional Environment: The Wenlock Limestone was formed in a warm, shallow marine environment, characterised by reef systems, carbonate platforms, and high biodiversity. These conditions facilitated extensive bryozoan growth alongside corals, crinoids, brachiopods, and trilobites.

Morphological Features:

  • Encrusting colonies with finely detailed zooecial structures
  • Calcareous, branching, or sheet-like growth patterns
  • Preserved in original sea floor matrix with natural bedding plane

Notable:

  • Genuine fossil from a Site of Special Scientific Interest (SSSI)
  • Rich marine fossil content from a classic British Silurian locality
  • Excellent display specimen or educational aid
  • Photo shows the exact item you will receive

Authenticity: All of our fossils are 100% genuine natural specimens and come with a Certificate of Authenticity. The scale in the photo shows 1cm per square or cube – please consult the image for full dimensions.

 

This bryozoan sea floor slab from the Silurian reef ecosystems of Dudley offers a remarkable window into early marine life and is a striking addition to any fossil collection.

(Actual as seen)

Only 1 left in stock

SKU: UF3249 Category:

Description

A beautifully preserved Fossil Sea Floor Slab featuring colonial bryozoans, sourced from the Wenlock Limestone Formation and dated to the Wenlockian Stage of the Silurian period (~428–423 million years ago). This fossil originates from the iconic Wrens Nest site in Dudley, West Midlands, UK — a globally important locality and one of the UK’s most famous fossil sites.

Bryozoans, often referred to as “moss animals,” are colonial, filter-feeding marine invertebrates that flourished in Silurian reef environments. This specimen displays a dense patch of bryozoan colonies encrusting the sea floor slab, capturing the biodiversity and ecological dynamics of ancient tropical marine settings.

Fossil Type: Colonial Bryozoans (marine invertebrates)

Geological Age: Silurian – Wenlockian Stage

Formation: Wenlock Limestone Formation

Depositional Environment: The Wenlock Limestone was formed in a warm, shallow marine environment, characterised by reef systems, carbonate platforms, and high biodiversity. These conditions facilitated extensive bryozoan growth alongside corals, crinoids, brachiopods, and trilobites.

Morphological Features:

  • Encrusting colonies with finely detailed zooecial structures
  • Calcareous, branching, or sheet-like growth patterns
  • Preserved in original sea floor matrix with natural bedding plane

Notable:

  • Genuine fossil from a Site of Special Scientific Interest (SSSI)
  • Rich marine fossil content from a classic British Silurian locality
  • Excellent display specimen or educational aid
  • Photo shows the exact item you will receive

Authenticity: All of our fossils are 100% genuine natural specimens and come with a Certificate of Authenticity. The scale in the photo shows 1cm per square or cube – please consult the image for full dimensions.

 

This bryozoan sea floor slab from the Silurian reef ecosystems of Dudley offers a remarkable window into early marine life and is a striking addition to any fossil collection.

Additional information

Era

Silurian
Origin

United Kingdom

Silurian Information

The Silurian Period (443–419 million years ago) was a time of climate stabilization following the end-Ordovician mass extinction. The climate became warmer, and sea levels rose, leading to the expansion of shallow marine ecosystems. Coral reefs flourished, and new marine predators like Eurypterids (sea scorpions) and early jawed fish emerged. One of the most significant events was the colonization of land—early vascular plants such as Cooksonia appeared, along with the first arthropods to venture onto land. These evolutionary advances set the stage for the more complex terrestrial ecosystems that developed in the Devonian.

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