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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LYTOCRIOCERAS Heteromorph Ammonite – Hauterivian Cretaceous, Agadir Morocco

PLN zł240.78

Presenting a rare and visually captivating heteromorph ammonite fossil of the genus LYTOCRIOCERAS, from the Hauterivian Stage of the Early Cretaceous Period. This genuine fossil was discovered near Agadir, Morocco, an area renowned for its fossil-rich marine strata.

Taxonomic Classification:

  • Order: Ammonitida
  • Superfamily: Ancyloceratoidea
  • Family: Ancyloceratidae
  • Genus: Lytocrioceras

Geological Context:

  • Period: Cretaceous
  • Stage: Hauterivian (~132–129 million years ago)
  • Depositional Environment: Shallow to mid-shelf marine conditions. Fine-grained carbonate and marl sediments created ideal preservation conditions for fragile ammonite shells. These ammonites were likely slow-moving and drifted in the open sea, with shell morphologies adapted to low-energy pelagic lifestyles.

Morphological Features:

  • Classic heteromorph form with loosely coiled early whorls transitioning into more elongated, hook-like shaft segments
  • Ornamented with fine ribbing and tubercles, and suture patterns may be visible in well-preserved examples
  • Irregular coiling is a key identifier of the genus and a subject of evolutionary interest, as it reflects non-standard buoyancy and ecological strategies in ammonites

Scientific Significance:

  • Lytocrioceras is part of the heteromorph ammonite radiation during the Early Cretaceous, showcasing experimental shell forms outside the standard planispiral coil
  • These fossils aid in biostratigraphic dating and palaeobiogeographic studies, especially across the Tethyan marine realm

Locality Information:

  • Agadir region, Morocco – a prolific fossil site with exposures of Early Cretaceous marine sedimentary rocks, often yielding ammonites, belemnites, and other invertebrates in excellent condition

Authenticity & Display:

All of our fossils are 100% Genuine Specimens and are accompanied by a Certificate of Authenticity. The images included show the actual specimen you will receive. Please note that the scale cube = 1cm and full sizing details can be found in the photographs.

This is a carefully selected piece of palaeontological history, perfect for ammonite collectors, fossil enthusiasts, or those with an interest in the diverse evolutionary forms of the Cretaceous seas.

Own a true relic of marine life from over 130 million years ago—a rare and beautiful example of Lytocrioceras.

(Actual as seen)

Out of stock

SKU: UF3432 Category:

Description

Presenting a rare and visually captivating heteromorph ammonite fossil of the genus LYTOCRIOCERAS, from the Hauterivian Stage of the Early Cretaceous Period. This genuine fossil was discovered near Agadir, Morocco, an area renowned for its fossil-rich marine strata.

Taxonomic Classification:

  • Order: Ammonitida
  • Superfamily: Ancyloceratoidea
  • Family: Ancyloceratidae
  • Genus: Lytocrioceras

Geological Context:

  • Period: Cretaceous
  • Stage: Hauterivian (~132–129 million years ago)
  • Depositional Environment: Shallow to mid-shelf marine conditions. Fine-grained carbonate and marl sediments created ideal preservation conditions for fragile ammonite shells. These ammonites were likely slow-moving and drifted in the open sea, with shell morphologies adapted to low-energy pelagic lifestyles.

Morphological Features:

  • Classic heteromorph form with loosely coiled early whorls transitioning into more elongated, hook-like shaft segments
  • Ornamented with fine ribbing and tubercles, and suture patterns may be visible in well-preserved examples
  • Irregular coiling is a key identifier of the genus and a subject of evolutionary interest, as it reflects non-standard buoyancy and ecological strategies in ammonites

Scientific Significance:

  • Lytocrioceras is part of the heteromorph ammonite radiation during the Early Cretaceous, showcasing experimental shell forms outside the standard planispiral coil
  • These fossils aid in biostratigraphic dating and palaeobiogeographic studies, especially across the Tethyan marine realm

Locality Information:

  • Agadir region, Morocco – a prolific fossil site with exposures of Early Cretaceous marine sedimentary rocks, often yielding ammonites, belemnites, and other invertebrates in excellent condition

Authenticity & Display:

All of our fossils are 100% Genuine Specimens and are accompanied by a Certificate of Authenticity. The images included show the actual specimen you will receive. Please note that the scale cube = 1cm and full sizing details can be found in the photographs.

This is a carefully selected piece of palaeontological history, perfect for ammonite collectors, fossil enthusiasts, or those with an interest in the diverse evolutionary forms of the Cretaceous seas.

Own a true relic of marine life from over 130 million years ago—a rare and beautiful example of Lytocrioceras.

Additional information

Era

Cretaceous

Origin

Morocco

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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