Deshayesites Ammonite Fossil Aptian Cretaceous France Genuine Certified Specimen

Description

Genuine Deshayesites Ammonite Fossil from France

This listing offers an authentic Deshayesites ammonite fossil from the Aptian stage of the Early Cretaceous, discovered in France. Dating back approximately 125–113 million years, this fossilised cephalopod represents one of the most scientifically important ammonite groups of the Cretaceous period. Each specimen is carefully selected and comes complete with a Certificate of Authenticity, ensuring its genuine origin and historical value. The photographs provided show the exact fossil you will receive, with a scale cube included (1 cm squares) for accurate size reference.

Geological Context and Age

This fossil originates from Aptian-aged strata of the Lower Cretaceous system. The Aptian stage was a critical interval in Earth’s history, marked by significant climatic change, rising sea levels, and evolutionary diversification of both marine and terrestrial life. Shallow seas covered large parts of Europe during this time, depositing sediments that preserved marine life in extraordinary detail. The Deshayesites genus is particularly significant in stratigraphy, serving as a key indicator of Aptian deposits across Europe and beyond.

Scientific Classification

• Class: Cephalopoda
• Subclass: Ammonoidea
• Order: Ammonitida
• Superfamily: Deshayesitoidea
• Family: Deshayesitidae
• Genus: Deshayesites

Ammonites such as this belong to the cephalopods, ancient relatives of today’s squid, cuttlefish, and octopus. Their spiral shells, divided into chambers, provided buoyancy and protection, allowing them to thrive as predators in Cretaceous seas.

Morphological Features

Specimens of Deshayesites typically exhibit a moderately evolute shell form, with visible inner whorls and prominent ribbing. The ribs often bifurcate or branch as they cross the flanks, terminating in well-defined tubercles or strengthening ridges near the ventral area. These structural adaptations not only served a functional role in the animal’s hydrodynamics but also provide palaeontologists with important diagnostic features for species identification. The distinctive ornamentation and coiling of Deshayesites make it one of the more visually striking ammonites of the Aptian.

Palaeontological Importance

The genus Deshayesites holds great scientific value as it is widely recognised as a biostratigraphic marker for the Aptian stage of the Early Cretaceous. Its distribution across European deposits makes it essential in correlating geological formations and dating sedimentary sequences. For collectors, owning such a specimen means possessing a fossil that is not only aesthetically beautiful but also historically important in the study of Earth’s stratigraphy.

Collectors’ Value and Display

This specimen of Deshayesites is an excellent choice for fossil collectors, educational use, or as a unique natural display item. Its sharp ribbing and classic ammonite form make it visually appealing, while its geological and historical significance enhance its desirability. Fossils from the Aptian of France are prized for their preservation quality and their contribution to our understanding of the Cretaceous seas.

All of our fossils are 100% genuine specimens, carefully chosen for their scientific and aesthetic qualities. Each comes with a Certificate of Authenticity, giving you confidence in your purchase. This rare Deshayesites ammonite from France is a remarkable piece of natural history, a true addition to any collection of fossils or geological specimens.