Phylloceras cf pustulatum Ammonite Fossil Callovian Jurassic France COA

Description

Phylloceras cf. pustulatum Ammonite Fossil from Deux-Sèvres, France

This genuine Phylloceras cf. pustulatum ammonite fossil comes from Deux-Sèvres, Nouvelle-Aquitaine, France, and dates to the Callovian Stage of the Middle Jurassic. It is a carefully chosen fossil specimen, supplied with a Certificate of Authenticity lifetime guarantee generic card. Full sizing can be seen in the photo, and the image shows the actual specimen you will receive.

Phylloceras ammonites are highly collectable Jurassic cephalopods, admired for their refined shell form, scientific interest and distinctive place within ammonite evolution. This specimen is especially suitable for collectors of European ammonites, French Jurassic fossils, Callovian marine life and natural history display pieces.

Species and Scientific Interest

Phylloceras cf. pustulatum is an extinct ammonite belonging to the ammonoid cephalopods, a group of marine molluscs related to modern squid, cuttlefish and nautilus. Ammonites lived in ancient seas and produced coiled, chambered shells. The animal occupied the outer body chamber, while the inner chambers helped regulate buoyancy as it moved through the water column.

The “cf.” in Phylloceras cf. pustulatum means the specimen compares closely with Phylloceras pustulatum, while allowing careful scientific caution in the exact species-level identification. This is a standard palaeontological notation used when a fossil shows strong similarity to a named species but is best labelled conservatively.

Phylloceras is generally placed within the family Phylloceratidae, superfamily Phylloceratoidea, order Phylloceratida. Members of this group are known for their often smooth to finely ornamented shells and complex suture patterns. The name Phylloceras refers to the leaf-like appearance of the suture lines, a key feature that makes this ammonite group especially interesting to collectors and palaeontology enthusiasts.

Callovian Middle Jurassic Geology

This fossil dates to the Callovian Stage of the Middle Jurassic, approximately 163 to 166 million years old. During the Callovian, large areas of western Europe were covered by warm, shallow epicontinental seas. These marine environments supported a diverse ecosystem of ammonites, belemnites, bivalves, brachiopods, gastropods, echinoids and marine reptiles.

Sediments deposited across the ancient sea floor helped preserve hard shells and other remains as fossils. Ammonites from the Callovian are especially important because they are widely used as guide fossils. Their rapid evolution and broad distribution allow geologists to date and correlate Jurassic rock layers across different regions. A specimen such as Phylloceras cf. pustulatum therefore has strong educational, scientific and display value.

Locality: Deux-Sèvres, Nouvelle-Aquitaine, France

This specimen comes from Deux-Sèvres in the Nouvelle-Aquitaine region of western France, an area known for fossil-bearing Jurassic sedimentary deposits. During the Middle Jurassic, this region formed part of a shallow marine setting where ammonites and other sea life flourished. Over millions of years, marine sediments hardened into fossil-bearing strata, preserving evidence of the ancient Jurassic seas.

French Jurassic ammonites are popular with collectors because of their variety, preservation and classic European geological significance. A labelled specimen from Deux-Sèvres adds valuable locality information to a fossil collection and is ideal for anyone building a display of Middle Jurassic ammonites, French fossils, Callovian marine specimens or European natural history material.

Morphology and Display Features

Phylloceras ammonites typically show a coiled planispiral shell with a relatively rounded to compressed whorl profile, depending on species and preservation. Many specimens have a smoother appearance than strongly ribbed ammonites, although fine ornamentation, growth lines or subtle surface features may be visible. The complex suture pattern is one of the most notable scientific features of the group and reflects the internal chamber divisions of the original shell.

Depending on preservation, the fossil may show natural cream, beige, grey, brown or iron-rich tones, with variations in texture, matrix and surface detail. These natural features are part of the specimen’s authenticity and geological character. As the photo shows the actual fossil you will receive, this is an individual specimen rather than a generic stock example.

Authenticity and Collector Appeal

This Phylloceras cf. pustulatum ammonite is a genuine Callovian Middle Jurassic fossil from Deux-Sèvres, Nouvelle-Aquitaine, France. It includes a Certificate of Authenticity lifetime guarantee generic card, giving confidence to fossil collectors, geology enthusiasts, students and gift buyers.

With its careful scientific labelling, Middle Jurassic age, French locality and attractive ammonite form, this fossil would make an excellent addition to a Jurassic fossil collection, ammonite display, European fossil suite, educational geology cabinet or natural history collection.