Anahamulina davidsoni Heteromorph Ammonite Fossil from France

Genuine Lower Cretaceous Specimen

This listing is for the exact Anahamulina davidsoni heteromorph ammonite shown in the photographs. It is a genuine natural specimen from Saint-André-les-Alpes in Alpes-de-Haute-Provence, France, dating to the Lower Barremian Nicklesi Zone of the Early Cretaceous. The fossil has been carefully selected and individually photographed, so the specimen pictured is the actual piece you will receive. Please use the sizing photograph for full measurements and inspect all images for its individual preservation, colour, matrix and surface detail.

Lower Barremian Geology

The Barremian Stage belongs to the Early Cretaceous and spans approximately 129 to 125 million years ago. During this interval, southeastern France formed part of a marine basin influenced by the developing Alpine region. Fine sediment accumulated on the sea floor and preserved a rich fauna of ammonites and other marine organisms.

Saint-André-les-Alpes is well known among collectors and palaeontologists for Lower Cretaceous fossils. The Nicklesi Zone provides useful biostratigraphic context, identifying an interval through its characteristic ammonite assemblage. A specimen with this locality and zone data offers considerably more scientific value than an unprovenanced decorative fossil.

About Anahamulina davidsoni

Anahamulina is an extinct genus of heteromorph ammonite. Unlike normally coiled ammonites, heteromorphs developed shells with partly uncoiled or irregular growth patterns. This unusual morphology gives the fossil a distinctive shape and reflects the remarkable evolutionary diversity of Cretaceous cephalopods.

Ammonites were marine molluscs related within the wider cephalopod group to living squid, cuttlefish and nautiluses. Their shells contained chambers separated by septa, while the living animal occupied the final body chamber. Ribs and other ornament strengthened the shell and help palaeontologists distinguish different taxa. The photographs accurately show the authentic shape, ribbing, mineral tones, matrix and completeness of this individual Anahamulina davidsoni.

Scientific and Collecting Interest

Ammonites evolved rapidly and were distributed widely through ancient seas. Their fossils allow geologists to correlate rock layers and refine relative ages. Heteromorph ammonites are particularly interesting because their unconventional shells broaden our understanding of ammonoid development, buoyancy and ecological adaptation.

This specimen is suitable for a specialist heteromorph collection, an Early Cretaceous display, a geology teaching cabinet or a distinctive natural history gift. Its named species, French locality and Nicklesi Zone provenance make it desirable for collectors who value documented scientific context as well as visual form.

Exact Fossil and Authenticity

You will receive the exact fossil pictured, not a stock example. Fossils are natural geological objects and may retain ancient fractures, matrix, mineral variation, weathering or preparation marks that form part of their history. Review every photograph carefully and refer to the sizing image for dimensions.

A generic Certificate of Authenticity card with a lifetime guarantee is included. The specimen will be packed carefully for safe transit and protection of the condition shown.