Rare Pulchellia gallica Ammonite Fossil from Aptian Cretaceous Alps Haute Provence France Authentic Specimen

Description

Geological Context and Provenance

This rare specimen is a genuine Pulchellia gallica fossil ammonite from the Aptian Stage of the Early Cretaceous Period, dating to approximately 125 – 113 million years ago. It was discovered in the Alps region of Haute Provence, France, one of the most significant fossil-bearing localities in Europe for Early Cretaceous ammonites. The Aptian seas of this region were part of the expansive Tethys Ocean, a warm and biodiverse seaway that played a crucial role in marine evolution during the Cretaceous.

The strata of Haute Provence are composed of limestones and marls that formed in shallow marine settings, where sedimentation conditions allowed for the exceptional preservation of ammonites. Fossils from this region continue to provide invaluable data for palaeontologists, helping to refine the stratigraphy of the Lower Cretaceous and reconstruct the ancient ecosystems of the Tethyan margin.

Fossil Type and Species Information

Pulchellia gallica belongs to the Order Ammonitida, Superfamily Desmoceratoidea, and Family Pulchelliidae. The genus Pulchellia is an important component of Aptian ammonite faunas and is widely used as an index fossil for dating and correlating Aptian-age deposits across Europe.

The species gallica is distinguished by its ribbed shell ornamentation, compact coiling, and robust form. These features not only aid in identification but also highlight the evolutionary adaptations of the genus during a period of significant environmental changes in the Early Cretaceous seas. Its name reflects its strong association with French localities, where some of the most characteristic examples of the species have been found.

Morphological Features and Identification

This specimen of Pulchellia gallica exhibits the characteristic strong ribbing across the flanks, with ribs extending toward the venter. The shell is moderately involute, giving it a compact and well-defined coiled form. The ribs are straight to slightly curved, forming an elegant and striking pattern that makes this ammonite visually distinctive.

The ribbing served both structural and hydrodynamic purposes, strengthening the shell against pressure while stabilising the animal in open-water swimming. The chambered shell interior, like that of all ammonites, provided buoyancy control, allowing Pulchellia gallica to move efficiently in the marine water column.

Depositional Environment

During the Aptian Stage, the Alps of Haute Provence were submerged beneath shallow tropical seas linked to the Tethys Ocean. This was a dynamic period of Earth’s history, with shifts in climate, sea levels, and marine circulation patterns. The sediments of this region preserve a diverse range of ammonites, belemnites, bivalves, gastropods, echinoids, and marine reptiles.

Ammonites like Pulchellia gallica were nektonic predators, preying on small crustaceans and plankton while serving as a crucial food source for larger predators, including marine reptiles and large fish. Their abundance and distribution make them essential fossils for reconstructing Aptian ecosystems and for understanding evolutionary patterns during the Early Cretaceous.

Collector Appeal and Authenticity

This Pulchellia gallica ammonite is a rare and scientifically important specimen, prized for both its aesthetic qualities and its palaeontological value. Its ribbing, coiling, and provenance from the fossil-rich Alps of Haute Provence make it an outstanding addition to any collection.

• 100% Genuine Specimen – All of our fossils are authentic and supplied with a Certificate of Authenticity.
• Exact Fossil Shown – The photographs provided depict the actual specimen you will receive.
• Scale Reference – Scale rule squares / cube = 1 cm. Please check the photos for accurate measurements.

This carefully selected Pulchellia gallica ammonite fossil embodies the beauty and scientific significance of Aptian ammonites from southern France. With its combination of rarity, detailed preservation, and geological importance, it is a superb specimen for collectors, educators, and enthusiasts of natural history.