Phylloceras alpinum Ammonite Fossil Valanginian Cretaceous Spain Genuine Certified Specimen

Description

Phylloceras alpinum Ammonite Fossil Valanginian Stage Cretaceous Cehejin Murcia Spain Authentic Fossil with Certificate of Authenticity

Long Description

Authentic Phylloceras alpinum Ammonite Fossil from Spain

This superb Phylloceras alpinum ammonite fossil comes from the Valanginian stage of the Early Cretaceous period (approximately 139–132 million years ago) and was discovered at Cehejin, Murcia, Spain. Carefully chosen for its natural preservation, this fossil showcases the distinctive traits of a classic ammonite from one of Europe’s most important Early Cretaceous fossil localities. The exact specimen you see in the photographs is the one you will receive, with a Certificate of Authenticity included for complete assurance of its provenance. For scale, each cube shown represents 1 cm.

Geological Setting – The Valanginian Stage

The Valanginian stage is an interval within the Early Cretaceous marked by significant global geological and biological changes. It followed the Berriasian and preceded the Hauterivian, forming part of a crucial evolutionary era when marine biodiversity expanded considerably. Fossil-rich deposits such as the Speeton Clay in the UK and the Spanish localities of Murcia provide vital insights into ammonite diversity during this time. The discovery of Phylloceras alpinum in these sediments demonstrates the wide geographical range of the genus and its importance as a biostratigraphic marker within Cretaceous stratigraphy.

Scientific Classification

• Class: Cephalopoda
• Subclass: Ammonoidea
• Order: Ammonitida
• Superfamily: Phylloceratoidea
• Family: Phylloceratidae
• Genus: Phylloceras
• Species: Phylloceras alpinum

The family Phylloceratidae is regarded as one of the more primitive lineages within Ammonitida, retaining smooth shells and evolutionary features that link back to earlier Jurassic ammonites.

Morphological Features

Phylloceras alpinum is characterised by its smooth, involute shell, with rounded whorls and a relatively narrow umbilicus. Unlike many Cretaceous ammonites with strong ribbing or ornamentation, Phylloceratids are typically more streamlined and elegant in appearance. The sutures of Phylloceras are notably complex, with deeply incised lobes and saddles forming intricate patterns across the shell. These sutural details are one of the genus’ defining traits and are highly valued by collectors and researchers.

The smooth surface and subtle growth lines suggest an adaptation to a nektonic lifestyle, allowing the ammonite to move swiftly through the water column. Its morphology reflects its role as a pelagic predator, preying on small fish, crustaceans, and other marine organisms.

Paleoenvironment and Ecology

During the Valanginian, southern Europe—including modern-day Spain—was covered by warm, shallow seas influenced by the broader Tethyan Ocean. These seas provided the perfect environment for ammonites to flourish. Phylloceras alpinum lived in open marine waters, where its streamlined form gave it agility and speed. The widespread presence of Phylloceratids highlights their adaptability and their role in the Early Cretaceous marine ecosystem.

The Cehejin region of Murcia is known for its fine-grained sedimentary deposits, which provided exceptional conditions for fossil preservation. This allowed ammonites like Phylloceras alpinum to be preserved in detail, capturing the elegant features of their shells for millions of years.

Collectible and Scientific Value

This Phylloceras alpinum ammonite fossil is a stunning addition to any fossil collection. Its smooth, classic morphology contrasts beautifully with the ribbed and ornamented ammonites of later Cretaceous stages, making it an excellent specimen for comparative display. For students of paleontology, educators, and collectors alike, this fossil provides a direct link to the Early Cretaceous seas and the evolutionary heritage of ammonites.

Every specimen we offer is authentic and accompanied by a Certificate of Authenticity, ensuring peace of mind for collectors and gift buyers. This fossil represents not only a striking natural display piece but also a scientifically significant specimen that encapsulates a moment in Earth’s deep history.