Rare Phyllopachyceras infundibulum Fossil Ammonite – Hauterivian, Cretaceous, Drôme France – Genuine + COA

Description

A rare and scientifically significant Phyllopachyceras infundibulum Fossil Ammonite, from the Hauterivian Stage of the Cretaceous Period, collected in Drôme, France. This specimen represents a remarkable example of the genus Phyllopachyceras, noted for its distinctive pachyceratid morphology and detailed ornamentation. The exact specimen shown in the photos is the one you will receive, and it is supplied with a Certificate of Authenticity.

Fossil Type & Species:

• Type: Ammonite (extinct marine cephalopod)
• Species: Phyllopachyceras infundibulum
• Order: Ammonitida
• Superfamily: Phylloceratoidea
• Family: Phylloceratidae

Geological Context:

• Period: Cretaceous
• Epoch/Stage: Lower Cretaceous – Hauterivian (approx. 132.9 to 129.4 million years ago)
• Biozone: Associated with Hauterivian ammonite faunas frequently used for regional and global correlation
• Depositional Environment: Marine shelf environment with limestones and marls, providing excellent conditions for ammonite preservation

Locality:

• Region: Drôme, France
• Formation: Hauterivian limestone and marl successions of SE France (exact stratigraphy not specified)

Morphology & Features:

• Strongly involute shell with narrow umbilicus
• Smooth to faintly ornamented shell surface typical of phylloceratids
• Complex suture lines highly characteristic of the family
• Streamlined, elegant morphology with subtle ribbing or growth lines

Scientific Notes:

• Phyllopachyceras infundibulum was originally described in the 19th century during studies of Lower Cretaceous ammonite faunas of Europe
• The genus Phyllopachyceras is closely allied with Phylloceras and is significant in understanding evolutionary transitions in early Cretaceous ammonites

Notable Details:

• Excellent preservation with natural shell form and suture detail visible
• Entirely natural, unrestored fossil
• Scale Reference: Each square or cube = 1cm. Please refer to the photos for accurate specimen size

Authenticity & Guarantee: All of our fossils are 100% genuine, responsibly sourced, and professionally curated. A Certificate of Authenticity is included with your purchase. The fossil shown is the exact specimen you will receive.

This Phyllopachyceras infundibulum ammonite is a rare and scientifically valuable specimen, making it an outstanding choice for fossil collectors, researchers, or natural history displays.