Description
RARE: Reineckia anceps Fossil Ammonite (5.5″)
Geological Age: Middle Callovian, Middle Jurassic (~165 to 164 million years ago)
Location Found: La Grimaudière, Vienne, Nouvelle-Aquitaine, France
Fossil Type: Ammonite (Extinct Marine Cephalopod)
Species: Reineckia anceps
Order: Ammonitida
Superfamily: Stephanoceratoidea
Family: Reineckeiidae
Specimen Overview:
This rare 5.5-inch ammonite fossil is Reineckia anceps, an elegant and scientifically important species from the Middle Callovian stage of the Jurassic. Discovered in La Grimaudière, a well-known fossil site in Vienne, France, this specimen is a fine example of the marine life that thrived in Europe’s Jurassic seas.
The photo displays the actual fossil you will receive. A 1cm scale rule cube is included in the image for accurate sizing. Please refer to the photo for full size, preservation, and detail.
Geological Context & Depositional Environment:
The Middle Callovian was characterised by extensive shallow marine basins across Western Europe. The region around La Grimaudière represents one such basin, where calcareous clays and silts created a favourable environment for the preservation of marine organisms.
This fossil may come from within the Reineckia anceps Biozone, which is a key ammonite biostratigraphic marker for the Middle Callovian, particularly in Western Europe. These strata help correlate marine sequences across the Jurassic Tethys realm.
Morphology & Notable Features:
Reineckia anceps exhibits an involute shell with smooth inner whorls and strong, rounded primary ribs that often bifurcate as they cross the flanks. Its shell is moderately compressed with a relatively narrow venter, giving it a streamlined yet ribbed appearance. The ribbing and whorl structure provide excellent examples of Callovian ammonite evolution.
This 5.5″ specimen is notable for its well-preserved ornamentation and defined ribbing—traits that make it both visually striking and scientifically valuable.
Authenticity & Guarantee:
All our fossils are 100% genuine specimens and come with a Certificate of Authenticity. Every piece is professionally prepared, stabilised, and carefully chosen for its quality and educational or display potential.
Perfect For:
- Fossil collectors and natural history curators
- Geological educators and academic research
- Decorative and educational displays
- Gifts for palaeontology enthusiasts
Capture a moment from the Jurassic seas with this stunning Reineckia anceps ammonite from the classic Middle Callovian strata of Vienne, France—a prized addition to any fossil collection!
Reviews
There are no reviews yet.