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RARE TOXOCERATOIDES TAYLORI Heteromorph Ammonite Fossil – Aptian, Cretaceous: Walsh River, Queensland, Australia – Alice Purnell Collection

RARE TOXOCERATOIDES TAYLORI Heteromorph Ammonite Fossil – Aptian, Cretaceous: Walsh River, Queensland, Australia – Alice Purnell Collection

£600.00

Introducing a VERY RARE and scientifically significant fossil heteromorph ammonite: Toxoceratoides taylori, from the Aptian Stage of the Early Cretaceous, collected from the renowned Walsh River site in Queensland, Australia. This unique piece is part of the prestigious Alice Purnell Collection, known for its expertly curated and accurately identified fossil specimens.

Toxoceratoides taylori is a heteromorph ammonite species, exhibiting uncoiled or loosely coiled shell morphology, which deviates from the typical planispiral ammonite form. The genus is placed within the family Ancyloceratidae, under the superfamily Ancyloceratoidea, and order Ammonitida. These ammonites are well-known for their distinctive, often loosely helically coiled or hooked shells.

Geological & Scientific Details:

  • Scientific Name: Toxoceratoides taylori
  • Fossil Type: Heteromorph Ammonite
  • Geological Period: Cretaceous
  • Geological Stage: Aptian (~125–113 million years ago)
  • Location Found: Walsh River, Queensland, Australia
  • Order: Ammonitida
  • Superfamily: Ancyloceratoidea
  • Family: Ancyloceratidae
  • Morphological Features: Loosely coiled to helical shell, complex suture patterns, prominent ribs, and occasional tubercles or spines
  • Depositional Environment: Marine offshore sedimentary basin – typically deep-water marl and shale indicative of a warm Cretaceous seaway

This species reflects an important evolutionary pathway of ammonites adapting to varying buoyancy and mobility strategies. Heteromorphs such as Toxoceratoides are valuable for biostratigraphy and palaeoecological studies.

All of our Fossils are 100% Genuine Specimens & come with a Certificate of Authenticity.

Please Note:

  • Scale Rule Squares / Cube = 1cm – full sizing is visible in the photo
  • The fossil pictured is the exact specimen you will receive
  • From the Alice Purnell Collection – ideal for collectors, academics, and enthusiasts alike

A rare and fascinating ammonite fossil that makes a standout addition to any scientific or natural history collection.

(Actual as seen)

Includes a fully hand-signed Premium Certificate of Authenticity.

Only 1 left in stock

SKU: AF1202 Categories: ,

Description

Introducing a VERY RARE and scientifically significant fossil heteromorph ammonite: Toxoceratoides taylori, from the Aptian Stage of the Early Cretaceous, collected from the renowned Walsh River site in Queensland, Australia. This unique piece is part of the prestigious Alice Purnell Collection, known for its expertly curated and accurately identified fossil specimens.

Toxoceratoides taylori is a heteromorph ammonite species, exhibiting uncoiled or loosely coiled shell morphology, which deviates from the typical planispiral ammonite form. The genus is placed within the family Ancyloceratidae, under the superfamily Ancyloceratoidea, and order Ammonitida. These ammonites are well-known for their distinctive, often loosely helically coiled or hooked shells.

Geological & Scientific Details:

  • Scientific Name: Toxoceratoides taylori
  • Fossil Type: Heteromorph Ammonite
  • Geological Period: Cretaceous
  • Geological Stage: Aptian (~125–113 million years ago)
  • Location Found: Walsh River, Queensland, Australia
  • Order: Ammonitida
  • Superfamily: Ancyloceratoidea
  • Family: Ancyloceratidae
  • Morphological Features: Loosely coiled to helical shell, complex suture patterns, prominent ribs, and occasional tubercles or spines
  • Depositional Environment: Marine offshore sedimentary basin – typically deep-water marl and shale indicative of a warm Cretaceous seaway

This species reflects an important evolutionary pathway of ammonites adapting to varying buoyancy and mobility strategies. Heteromorphs such as Toxoceratoides are valuable for biostratigraphy and palaeoecological studies.

All of our Fossils are 100% Genuine Specimens & come with a Certificate of Authenticity.

Please Note:

  • Scale Rule Squares / Cube = 1cm – full sizing is visible in the photo
  • The fossil pictured is the exact specimen you will receive
  • From the Alice Purnell Collection – ideal for collectors, academics, and enthusiasts alike

A rare and fascinating ammonite fossil that makes a standout addition to any scientific or natural history collection.

Additional information

Era

Cretaceous
Origin

Australia

Cretaceous Information

The Cretaceous Period (145–66 million years ago) was the final era of the Mesozoic, marked by the dominance of dinosaurs and the rise of flowering plants. It had a warm, greenhouse climate, with high sea levels that created vast shallow inland seas. Marine life flourished, including mosasaurs, ammonites, and rudist reefs, while the land was ruled by iconic dinosaurs like Tyrannosaurus rex, Triceratops, and Spinosaurus. Mammals and birds diversified, and insects thrived. The period ended with the mass extinction event, likely caused by an asteroid impact, wiping out the dinosaurs and paving the way for the rise of mammals in the Cenozoic.

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