Description
GENUINE DOUVILLEICERAS INAEQUINODUM AMMONITE FOSSIL
This listing is for a genuine Douvilleiceras inaequinodum ammonite fossil from the Lower Albian of Monmouth Beach, Lyme Regis, Dorset, UK. This is a carefully chosen fossil specimen, with the listing photo showing the actual fossil you will receive. It is an excellent piece for collectors of British fossils, Cretaceous ammonites, Jurassic Coast fossils, Lyme Regis fossils, marine fossils, natural history specimens, and classic UK palaeontology.
This fossil is supplied with a Certificate of Authenticity lifetime guarantee generic card, confirming that it is a genuine natural fossil specimen. Full sizing can be seen in the photo.
SPECIES AND FOSSIL TYPE
Douvilleiceras inaequinodum is an ammonite, an extinct marine cephalopod related to modern squid, cuttlefish, and nautilus. Ammonites lived in coiled, chambered shells and were among the most successful marine animals of the Mesozoic Era. Their shells were divided into internal chambers, with the living animal occupying the final body chamber and using the earlier chambers to help control buoyancy in the water.
Douvilleiceras is a highly recognisable Cretaceous ammonite genus, well known for its strong ribbing, robust shell form, and distinctive tuberculate ornamentation. The shell typically shows pronounced ribs and raised nodules or tubercles, giving the fossil a bold, textured appearance that makes it especially attractive to collectors. These features also make Douvilleiceras an excellent educational specimen for showing how ammonite shell ornamentation varied between different groups.
GEOLOGICAL AGE AND ALBIAN SETTING
This specimen dates from the Lower Albian Stage of the Early Cretaceous Period. The Albian was a time of changing marine environments, rising sea levels, and diverse ammonite faunas across Europe. During this period, southern Britain lay close to warm shallow seas and coastal marine basins, where sediment accumulated on the seafloor and preserved the remains of marine animals.
Ammonites such as Douvilleiceras are important fossils for understanding Cretaceous stratigraphy. Because ammonites evolved rapidly and many species had wide geographical distributions, they are commonly used by palaeontologists to help date and correlate rock layers. A named Lower Albian ammonite from Dorset is therefore not only a visually striking fossil but also a scientifically meaningful specimen from an important interval of British geological history.
MONMOUTH BEACH, LYME REGIS, DORSET
Monmouth Beach at Lyme Regis is part of the world-famous Jurassic Coast, a UNESCO World Heritage coastline renowned for its outstanding fossil record and dramatic coastal geology. Although Lyme Regis is especially famous for Jurassic fossils, the wider Dorset coast also includes important Cretaceous exposures and fossil-bearing horizons that are of great interest to collectors and geologists.
The cliffs, foreshore, and coastal landslips around Lyme Regis have produced fossils for centuries and are strongly associated with the history of British palaeontology. Fossils from this area are highly collectable because they come from one of the most iconic fossil localities in the UK. A genuine ammonite from Monmouth Beach offers a direct connection to the ancient marine environments that once covered this part of southern England.
MORPHOLOGY AND COLLECTABLE FEATURES
Douvilleiceras inaequinodum is especially valued for its strong ammonite form and decorative shell ornamentation. The genus is known for robust whorls, prominent ribs, and nodular features that can give the shell a powerful sculptured appearance. These raised features would have strengthened the shell and may also have played a role in hydrodynamics or defence.
The species name inaequinodum refers to uneven or unequal nodular features, a useful descriptive clue to the fossil’s ornamentation. This makes the specimen particularly interesting for collectors who enjoy ammonites with bold surface detail rather than smooth or lightly ribbed forms. Depending on preservation, examples may show rib spacing, whorl curvature, tubercles, or partial body chamber detail.
CRETACEOUS MARINE ENVIRONMENT
When this ammonite was alive, the area now represented by Dorset formed part of a changing Early Cretaceous marine landscape. The sea supported a diverse ecosystem including ammonites, bivalves, gastropods, fish, marine reptiles, crustaceans, and other invertebrates. Ammonites were active marine cephalopods, moving through the water with a soft body extending from the final chamber of the shell.
Douvilleiceras would have lived in this ancient sea as part of a dynamic food web, likely feeding as an active predator or opportunistic scavenger. Its chambered shell gave it buoyancy control, while its strong ornamentation made it one of the more distinctive ammonites of the Early Cretaceous.
AUTHENTICITY AND DISPLAY
This Douvilleiceras inaequinodum ammonite fossil is a genuine specimen and includes a Certificate of Authenticity lifetime guarantee generic card. The listing photo shows the actual fossil you will receive, so you can buy with confidence knowing the specimen pictured is the one supplied.
This fossil would make an excellent addition to a fossil cabinet, geology collection, natural history display, educational set, or specialist ammonite collection. It is also a thoughtful gift for fossil collectors, palaeontology enthusiasts, students, teachers, or anyone interested in British fossils and prehistoric marine life.
PRODUCT DETAILS
Fossil: Ammonite
Species: Douvilleiceras inaequinodum
Age: Lower Albian, Early Cretaceous
Location: Monmouth Beach, Lyme Regis, Dorset, UK
Specimen: Genuine fossil ammonite
Certificate: Includes Certificate of Authenticity lifetime guarantee generic card
Sizing: Please see photo for full sizing
Photo: Shows the actual specimen you will receive
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