Description
Genuine Witchellia falcata Ammonite Fossil
This genuine Witchellia falcata ammonite fossil comes from the Inferior Oolite Group at Oborne Wood, Dorset, UK, and dates to the Middle Jurassic, Aalenian Stage. It is a carefully chosen British ammonite specimen from one of the classic Jurassic fossil-bearing regions of southern England. Ammonites were extinct marine cephalopods, related to modern squid, octopus and nautilus, and are among the most important fossils for understanding the age, environment and correlation of Jurassic marine rocks.
This fossil is a genuine specimen and includes a Certificate of Authenticity lifetime guarantee generic card. Full sizing can be seen in the photo. The fossil shown is the actual carefully chosen specimen you will receive, making it ideal for collectors who prefer accurately represented individual fossils rather than generic stock images.
Middle Jurassic Aalenian Geology
The Aalenian is an early stage of the Middle Jurassic, dating to approximately 174.7 to 170.9 million years ago. During this time, the area now known as Dorset lay beneath warm, shallow marine waters on the margins of an ancient European sea. Sediments accumulated on the sea floor as carbonate-rich sands, muds and shell debris, later forming parts of the Inferior Oolite Group.
The Inferior Oolite Group is one of the most important Middle Jurassic rock units in southern Britain. It is famous for its fossiliferous limestones, oolitic textures, shell beds and marine invertebrate fossils. Oolitic limestone forms from tiny rounded grains of calcium carbonate that develop in warm, agitated, shallow seawater. These conditions created an ideal habitat for ammonites, bivalves, brachiopods, echinoids, gastropods and other marine organisms.
Witchellia falcata Species Detail
Witchellia falcata is a Middle Jurassic ammonite species associated with the Aalenian and early Bajocian successions of western Europe. The genus Witchellia is an important ammonite group in Jurassic biostratigraphy, helping palaeontologists recognise and compare specific horizons within the Inferior Oolite and related marine deposits.
Witchellia belongs to the order Ammonitida and is associated with the family Graphoceratidae, a group of Jurassic ammonites known for generally compressed shells, defined whorl forms and ribbed ornament. The species name falcata refers to the curved, sickle-like impression suggested by the ribbing and shell ornament in some examples. These features make the fossil visually attractive while also providing useful identification characteristics for collectors and researchers.
Ammonite Morphology and Features
Witchellia ammonites typically show a planispirally coiled shell with distinct whorls and external ribbing. Depending on preservation, the fossil may display curved ribs crossing the flanks, a defined outer whorl, visible inner whorls, or natural matrix from the original limestone deposit. The ribbing and whorl shape are important features used to distinguish Witchellia from other Middle Jurassic ammonites.
Like all ammonites, Witchellia falcata had a chambered shell. The living animal occupied the final body chamber, while earlier chambers helped regulate buoyancy in the water column. The shell’s internal suture lines, where chamber walls met the outer shell, are one of the key features of ammonites and are important in scientific classification. Natural preservation in oolitic limestone can vary, giving each specimen its own character, texture and display quality.
Ancient Jurassic Marine Environment
This ammonite lived in a warm Jurassic sea rich in carbonate sediment and marine life. Witchellia falcata would have moved through the water as an active cephalopod, likely feeding on small marine animals or scavenging within the ecosystem. It shared its environment with other ammonites, belemnites, bivalves, brachiopods, echinoids, gastropods and early marine vertebrates.
The Inferior Oolite sea was dynamic and shallow, influenced by currents, changing sea levels and periodic sediment movement. These conditions helped create fossil-rich limestone beds where shells and skeletal remains could be buried, mineralised and preserved. A fossil from Oborne Wood therefore represents a genuine piece of Dorset’s Middle Jurassic marine history.
Oborne Wood, Dorset Fossil Locality
Oborne Wood in Dorset is part of a region well known for Jurassic geology and fossiliferous strata. Dorset has long been one of Britain’s most famous fossil counties, with exposures ranging from the Lower Jurassic coast to inland Middle Jurassic deposits. Fossils from Oborne Wood are especially appealing to collectors because they represent the inland Inferior Oolite successions rather than the more commonly collected coastal formations.
This locality information adds value and interest to the fossil, linking it to a specific geological setting and ancient environment. The combination of species, age, formation group and provenance makes this specimen suitable for display, study or addition to a specialised British Jurassic fossil collection.
Collectable British Inferior Oolite Ammonite
This Witchellia falcata ammonite fossil is an excellent addition to any collection of British fossils, Jurassic ammonites, Dorset fossils, Inferior Oolite fossils or marine invertebrate specimens. Its Middle Jurassic Aalenian age, Oborne Wood locality and classic ammonite form make it a desirable piece for collectors, educational displays and natural history enthusiasts.
Supplied with a Certificate of Authenticity lifetime guarantee generic card, this genuine Witchellia falcata ammonite from Oborne Wood, Dorset, UK, offers a collectable example of a British Middle Jurassic marine fossil from the fossil-rich Inferior Oolite Group.
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