Description
Euomphaloceras euomphalum Ammonite Fossil
This genuine Euomphaloceras euomphalum ammonite fossil is a collectible Upper Cretaceous marine specimen from Glynde, East Sussex, UK. Dating to the Lower Cenomanian stage, this fossil represents an attractive chalk-sea ammonite from the early part of the Late Cretaceous, when much of southern Britain was covered by warm marine waters. Euomphaloceras ammonites are valued by collectors for their distinctive coiled shell form, strong ornamentation and connection with important Cenomanian ammonite faunas.
The specimen is a carefully chosen piece, with the photograph showing the actual fossil you will receive. It is supplied with a Certificate of Authenticity lifetime guarantee generic card, making it an excellent choice for collectors of British fossils, Cretaceous ammonites, East Sussex chalk fossils, marine invertebrates and natural history display specimens.
Geology, Age and Locality
This fossil comes from the Lower Cenomanian of the Upper Cretaceous, an interval dating to approximately 100 to 96 million years ago. During this time, high global sea levels flooded large parts of Europe, including southern England. The region that is now East Sussex lay beneath a warm, shallow to moderately deep marine sea where ammonites, bivalves, echinoids, brachiopods, sponges, fish and other marine organisms lived.
The area around Glynde in East Sussex is associated with the classic Cretaceous chalk and chalk marl succession of the South Downs region. These deposits formed from fine carbonate-rich sediment that slowly accumulated on the seabed, largely derived from microscopic calcareous plankton and other marine remains. Over millions of years, this sediment compacted into chalk, preserving fossils from the ancient Cretaceous sea.
Fossils from named British localities such as Glynde are especially desirable because they carry clear geological and geographical provenance. A labelled ammonite from this locality provides a direct connection to the marine environments that existed in East Sussex during the early Late Cretaceous.
Fossil Type and Species Details
Euomphaloceras euomphalum is an ammonite, an extinct marine cephalopod related to modern squid, cuttlefish and nautilus. Ammonites lived within coiled external shells divided internally into chambers. The living animal occupied the final body chamber, while the empty chambers helped regulate buoyancy as it moved through the water column.
The genus Euomphaloceras is known from Cretaceous marine deposits and is recognised for its strongly ornamented shell, typically with robust ribbing and tuberculate features. These shell details helped strengthen the ammonite and are important characteristics used by palaeontologists when identifying and comparing related ammonite species.
Euomphaloceras euomphalum belongs to the family Acanthoceratidae, within the superfamily Acanthoceratoidea and the order Ammonitida. Acanthoceratid ammonites are among the most important ammonite groups of the Cretaceous and are widely used for dating and correlating marine deposits. Their rapid evolution and broad distribution make them especially useful guide fossils within Cenomanian rock successions.
Lower Cenomanian Marine Environment
When this ammonite was alive, the region now known as East Sussex formed part of a warm Cretaceous sea. Ammonites such as Euomphaloceras euomphalum were active swimming marine animals, moving through the water alongside fish, other cephalopods and many forms of marine invertebrate life. The seabed supported communities of bivalves, echinoids, brachiopods, sponges and other organisms adapted to chalk-sea conditions.
The ammonite shell was both protective and functional. Its chambered internal structure allowed buoyancy control, while the ribs and tubercles strengthened the shell and gave the fossil its distinctive sculptured appearance. These natural features make Euomphaloceras an appealing fossil for collectors who appreciate bold Cretaceous ammonite ornamentation and clear scientific interest.
Glynde, East Sussex, UK
Glynde is a respected East Sussex locality within the chalk landscapes of southern England. Fossils from this area are popular with collectors because they represent the ancient marine life of the Cretaceous seas that once covered the South Downs. Named locality specimens are particularly useful for building a well-labelled fossil collection, as they preserve not only the fossil itself but also its geological and geographical context.
This Euomphaloceras euomphalum ammonite from Glynde is suitable for display, study, teaching or adding to a themed collection of British fossils, Cretaceous ammonites, chalk marine specimens or fossil cephalopods. Its combination of named species, Lower Cenomanian age and clear East Sussex locality gives it strong collecting appeal.
Genuine Fossil with Certificate of Authenticity
This fossil is a genuine specimen and includes a Certificate of Authenticity lifetime guarantee generic card. Full sizing please see photo. The fossil shown in the photograph is the actual specimen you will receive, allowing you to buy with confidence and add a carefully selected, authentic Upper Cretaceous ammonite fossil from Glynde, East Sussex to your collection.
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