Description
Authentic Jurassic Ammonite from France
This listing offers a genuine Pseudographoceras literatum ammonite fossil, dating to the Bajocian stage of the Middle Jurassic. It was discovered in the famous fossil-rich beds of Evrecy, Calvados, France, a region well known for its exceptional preservation of ammonites and other marine fossils. This specimen represents a rare and scientifically significant ammonite species from an important stage of Jurassic ammonite evolution.
Each fossil we offer is 100% authentic, and this particular specimen is supplied with a Certificate of Authenticity. The photographs show the exact fossil you will receive, with a 1 cm scale cube for accurate sizing.
Geological Context
The Bajocian stage (approximately 170–168 million years ago) forms part of the Middle Jurassic epoch, a time when ammonites flourished in warm shallow seas that covered much of Europe. The Calvados region of Normandy, particularly Evrecy, provides exceptional exposures of these Jurassic sediments, allowing collectors and researchers access to well-preserved specimens like this one.
The depositional environment of Evrecy was a marine seafloor setting, rich in nutrients and biodiversity. Ammonites such as Pseudographoceras thrived in these waters, leaving behind coiled shells that became preserved in limestone and marl layers.
Fossil Description and Morphology
The genus Pseudographoceras belongs to the family Graphoceratidae, within the superfamily Hildoceratoidea, and the order Ammonitida. These ammonites are known for their elegant shell morphology, characterised by:
- Moderately involute coiling, with a visible umbilicus.
- Strong ribbing, which may curve slightly forward across the flanks.
- Whorl section generally compressed, giving the shell a graceful form.
- Sutures complex and distinctive, typical of Graphoceratidae ammonites.
This fossilised shell provides insight into Jurassic ammonite diversity, with the ribbed ornamentation and shell proportions offering identification features unique to Pseudographoceras literatum.
Scientific and Collectible Value
The Pseudographoceras literatum ammonite is both a collectible fossil and an important piece of paleontological history. Ammonites from the Bajocian are widely used by geologists as index fossils, helping to correlate rock layers and reconstruct Jurassic marine environments. The presence of this ammonite in Evrecy highlights the region’s importance for Middle Jurassic stratigraphy.
Collectors prize these specimens for their rarity, their clear diagnostic features, and their excellent preservation from Normandy’s classic fossil sites. This piece is an ideal addition for anyone building a scientifically focused ammonite collection or seeking a unique natural history display.
Features of This Specimen
- Species: Pseudographoceras literatum
- Age: Bajocian stage, Middle Jurassic (~170–168 million years old)
- Location: Evrecy, Calvados, Normandy, France
- Family: Graphoceratidae
- Superfamily: Hildoceratoidea
- Order: Ammonitida
- Condition: Genuine fossil, as photographed
- Authenticity: Supplied with a Certificate of Authenticity
A Unique Piece of Natural History
Every ammonite is unique, shaped by millions of years of geological processes. This specimen of Pseudographoceras literatum is a window into the Middle Jurassic seas of what is now France. Whether for display, study, or as a treasured fossil collectible, it represents both natural beauty and scientific importance.
Scale cube = 1 cm. Please see photos for accurate full specimen sizing.
Reviews
There are no reviews yet.