Description
This listing features a RARE 6.25″ Fossil Ammonite – Parkinsonia (Durotrigensia) neuffensis, an elegant and scientifically important specimen from the Bajocian Stage of the Middle Jurassic, collected from Calvados, Normandy, France. This is a particularly well-preserved example of a key biostratigraphic ammonite from classic Jurassic strata in northern France.
As always, this is a 100% genuine fossil specimen, carefully chosen and supplied with a Certificate of Authenticity. The exact fossil shown in the photographs is the one you will receive. Please refer to the photo with the 1cm scale cube for accurate sizing.
Fossil Overview:
- Species: Parkinsonia (Durotrigensia) neuffensis
- Common Name: Fossil Ammonite
- Geological Period: Jurassic
- Stage: Bajocian (~170.3 – 168.3 million years ago)
- Location: Calvados, Normandy, France
- Size: Approximately 6.25 inches (15.8 cm)
- Preservation: Excellent detail in fine-grained limestone or marl matrix
Geological & Depositional Environment:
This specimen was collected from the Bajocian marine deposits of the Calvados region in Normandy. During the Middle Jurassic, this region was part of a warm, shallow epicontinental sea, with carbonate-rich sedimentation ideal for fossil preservation. The environment supported diverse marine life, including ammonites, belemnites, bivalves, and brachiopods.
The Parkinsonia genus (and its subgenera such as Durotrigensia) are highly significant in biostratigraphy, used as index fossils to define ammonite zones of the Middle Jurassic.
Taxonomy & Classification:
- Phylum: Mollusca
- Class: Cephalopoda
- Order: Ammonitida
- Superfamily: Stephanoceratoidea
- Family: Parkinsoniidae
- Genus: Parkinsonia
- Subgenus: Durotrigensia
- Species: neuffensis
Morphological Features:
Parkinsonia (Durotrigensia) neuffensis is characterised by:
- A finely ribbed, strongly evolute shell with wide umbilicus
- Sharp, radial ribbing extending from umbilical shoulder across the flanks
- Typically non-bifurcating ribs ending at the venter
- Prominent suture lines in well-preserved examples
Its shell shape and hydrodynamic ribbing suggest a nektonic lifestyle, swimming in open marine waters and likely feeding on smaller invertebrates.
Notable Aspects:
- Classic ammonite species from a key Bajocian ammonite zone
- Excellent preservation and scientific relevance
- From a historically important fossil locality in northern France
- Ideal for collectors, educators, and display
Why Buy From Us?
- All fossils are 100% genuine and responsibly sourced
- Includes a Certificate of Authenticity
- The exact specimen shown is what you’ll receive
- Expertly packaged and promptly dispatched
Bring home a scientifically significant and beautifully detailed piece of Jurassic marine history with this rare Parkinsonia (Durotrigensia) neuffensis ammonite from Calvados, France.
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