Fossils for Sale - High-quality BRITISH and WORLDWIDE Fossils. An impressive selection of fossils, including Ammonites, Trilobites, Belemnites, Fossil Fish, Fossil Shark Teeth, Fossilised Insects in Amber, Dinosaurs, and Reptiles. UK Fossils was formed in 1988 and collects and preps our own fossils in the heart of the Jurassic Coast, collecting fossils from Lyme Regis, Charmouth and Somerset. Our passion for fossils is reflected in our carefully curated collection, which includes some of the rarest and most unique specimens available.
RARE 10.5″ Homeoplanulites Ammonite Fossil with Bivalve | Lower Callovian Jurassic | Deux-Sèvres France | Genuine Specimen w/ COA
£60.00
This listing presents a RARE and large 10.5-inch fossil of the ammonite Homeoplanulites, preserved beautifully alongside an associated Jurassic bivalve, from the Lower Callovian stage of the Jurassic period. Collected in Deux-Sèvres, France, this specimen is a remarkable example of Middle Jurassic marine life.
The exact specimen photographed is the one you will receive. A 1cm cube scale is included in the image for accurate sizing—please refer to the photo for full dimensions. This is a 100% genuine fossil, carefully selected and supplied with a Certificate of Authenticity.
Geological & Scientific Information:
Genus: Homeoplanulites (with associated bivalve)
Type: Fossil Ammonite (extinct marine cephalopod) with Bivalve
Size: Approximately 10.5 inches
Age: Approx. 166–164 million years old
Geological Period: Jurassic
Stage: Lower Callovian
Location Found: Deux-Sèvres, France
Order: Ammonitida
Superfamily: Stephanoceratoidea
Family: Possibly Kosmoceratidae (subject to regional taxonomic classification)
Morphological Features: Homeoplanulites is characterised by its relatively involute shell with moderately compressed whorls, strong ribbing, and fine ornamentation. This specimen showcases preserved suture lines and pronounced rib structures, along with an accompanying bivalve fossil that adds ecological context.
Depositional Environment: Calm to moderately shallow marine environments with marl and limestone sedimentation, allowing excellent preservation of shelly fauna.
Scientific Importance: Fossils from the Callovian of western France are essential for understanding cephalopod evolution and biostratigraphy during the Middle Jurassic. The combination of ammonite and bivalve provides rare insight into faunal interactions and paleoecology.
Additional Notes:
This dual-fossil specimen offers more than size—it offers a narrative of prehistoric marine life. Fossils displaying species interaction or co-preservation are uncommon and valuable both scientifically and aesthetically.
Why Buy From Us?
We only offer genuine, expertly selected fossils.
Includes a Certificate of Authenticity.
What you see is what you get—actual specimen pictured.
Ideal for collectors, educators, and natural history enthusiasts.
Add this exceptional Homeoplanulites ammonite with bivalve fossil to your collection and own a rare window into France’s Jurassic marine ecosystems!
This listing presents a RARE and large 10.5-inch fossil of the ammonite Homeoplanulites, preserved beautifully alongside an associated Jurassic bivalve, from the Lower Callovian stage of the Jurassic period. Collected in Deux-Sèvres, France, this specimen is a remarkable example of Middle Jurassic marine life.
The exact specimen photographed is the one you will receive. A 1cm cube scale is included in the image for accurate sizing—please refer to the photo for full dimensions. This is a 100% genuine fossil, carefully selected and supplied with a Certificate of Authenticity.
Geological & Scientific Information:
Genus: Homeoplanulites (with associated bivalve)
Type: Fossil Ammonite (extinct marine cephalopod) with Bivalve
Size: Approximately 10.5 inches
Age: Approx. 166–164 million years old
Geological Period: Jurassic
Stage: Lower Callovian
Location Found: Deux-Sèvres, France
Order: Ammonitida
Superfamily: Stephanoceratoidea
Family: Possibly Kosmoceratidae (subject to regional taxonomic classification)
Morphological Features: Homeoplanulites is characterised by its relatively involute shell with moderately compressed whorls, strong ribbing, and fine ornamentation. This specimen showcases preserved suture lines and pronounced rib structures, along with an accompanying bivalve fossil that adds ecological context.
Depositional Environment: Calm to moderately shallow marine environments with marl and limestone sedimentation, allowing excellent preservation of shelly fauna.
Scientific Importance: Fossils from the Callovian of western France are essential for understanding cephalopod evolution and biostratigraphy during the Middle Jurassic. The combination of ammonite and bivalve provides rare insight into faunal interactions and paleoecology.
Additional Notes:
This dual-fossil specimen offers more than size—it offers a narrative of prehistoric marine life. Fossils displaying species interaction or co-preservation are uncommon and valuable both scientifically and aesthetically.
Why Buy From Us?
We only offer genuine, expertly selected fossils.
Includes a Certificate of Authenticity.
What you see is what you get—actual specimen pictured.
Ideal for collectors, educators, and natural history enthusiasts.
Add this exceptional Homeoplanulites ammonite with bivalve fossil to your collection and own a rare window into France’s Jurassic marine ecosystems!
Additional information
Era
Jurassic
Origin
France
Jurassic Information
The Jurassic Period (201–145 million years ago) was the golden age of dinosaurs, with iconic species like Brachiosaurus, Stegosaurus, and Allosaurus dominating the land. It was a time of warm, humid climates, with high sea levels that created vast shallow seas, supporting abundant marine reptiles, ammonites, and early coral reefs. The first birds, such as Archaeopteryx, evolved from small theropod dinosaurs, while early mammals remained small and nocturnal. Lush forests of cycads, conifers, and ferns covered the land, providing food for giant herbivores. The breakup of the supercontinent Pangaea accelerated, shaping Earth's geography and setting the stage for the diverse ecosystems of the Cretaceous.
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