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.

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Amaltheus gibbosus Multi Fossil Ammonite Upper Pliensbachian Jurassic Germany – Genuine Authentic Prehistoric Marine Cephalopods with COA
Amaltheus gibbosus Multi Fossil Ammonite Upper Pliensbachian Jurassic Germany – Genuine Authentic Prehistoric Marine Cephalopods with COA - Image 2
Amaltheus gibbosus Multi Fossil Ammonite Upper Pliensbachian Jurassic Germany – Genuine Authentic Prehistoric Marine Cephalopods with COA - Image 3

Amaltheus gibbosus Multi Fossil Ammonite Upper Pliensbachian Jurassic Germany – Genuine Authentic Prehistoric Marine Cephalopods with COA

Original price was: £36.00.Current price is: £30.60.

Rare Multi-Fossil Ammonite Specimen from Germany

This listing presents a beautiful multi-fossil ammonite plate featuring Amaltheus gibbosus from the Upper Pliensbachian stage of the Early Jurassic period, found in the fossil-rich deposits of Shustenburg, Germany. This exceptional piece contains multiple ammonites preserved together in their natural matrix, making it both an impressive display piece and a scientifically valuable specimen. The photographs show the exact fossil you will receive, ensuring complete authenticity and transparency.

Geological Age & Formation

Amaltheus gibbosus thrived approximately 190 to 183 million years ago during the Upper Pliensbachian stage of the Early Jurassic. The Shustenburg region was, at that time, submerged beneath warm, shallow epicontinental seas. Fine-grained marine sediments settled over the sea floor, burying ammonites soon after death and allowing their shells to be preserved in extraordinary detail. The locality is renowned among collectors and researchers for its exceptional preservation of Early Jurassic marine life, often retaining both intricate surface ornamentation and well-defined suture lines.

Species Identification & Morphology

Belonging to the family Amaltheidae within the superfamily Eoderoceratoidea and order Ammonitida, Amaltheus gibbosus is recognised by its moderately involute, compressed shell with sharp ribbing and a distinctive keel along the venter. The ribs are strong and regularly spaced, sometimes branching towards the outer edge, giving the shell a striking symmetry. In this specimen, multiple individuals are preserved together, displaying varied growth stages from smaller juveniles to more mature forms.

The suture lines—complex patterns marking the chamber boundaries—are a key feature in ammonite identification and are visible on well-preserved areas of this specimen. These intricate details enhance both its aesthetic and scientific value.

Collector Highlights

  • Preservation: Outstanding, with multiple ammonites preserved in life-like arrangement on a natural rock matrix.
  • Authenticity: 100% genuine fossils, supplied with a Certificate of Authenticity.
  • Provenance: Shustenburg, Germany – Upper Pliensbachian, Early Jurassic marine deposits.
  • Display Quality: Large, attractive matrix with multiple complete ammonites, making it ideal for cabinet display or educational use.
  • Rarity: Multi-fossil ammonite plates of this species and quality from Shustenburg are increasingly scarce on the fossil market.

Paleoenvironment & Scientific Importance

During the Early Jurassic, Amaltheus gibbosus inhabited shallow, nutrient-rich seas, likely preying upon small crustaceans, mollusks, and other invertebrates. As nektonic predators, they swam actively using jet propulsion, with their coiled shells acting as buoyancy devices. The chambered phragmocone allowed for precise control of buoyancy, enabling them to occupy different depths in the water column.

The presence of multiple individuals on one matrix provides a rare snapshot of the paleoecology of the time. Such groupings can offer valuable insight into ammonite behaviour, population structure, and the depositional environment in which they were fossilised. Amaltheus gibbosus is also an important index fossil for the Upper Pliensbachian, allowing geologists to date and correlate marine strata across Europe with high accuracy.

A Superb Addition to Any Collection

This multi-fossil Amaltheus gibbosus specimen combines scientific value with striking visual impact. The natural arrangement of multiple ammonites on a single slab creates a display piece that is both historically significant and aesthetically captivating, making it an ideal choice for fossil collectors, geology enthusiasts, educators, and natural history displays.

All of our fossils are 100% genuine specimens and come with a Certificate of Authenticity. The fossil pictured is the exact specimen you will receive.

(Actual as seen)

Only 1 left in stock

SKU: UF4697 Category:

Description

Rare Multi-Fossil Ammonite Specimen from Germany

This listing presents a beautiful multi-fossil ammonite plate featuring Amaltheus gibbosus from the Upper Pliensbachian stage of the Early Jurassic period, found in the fossil-rich deposits of Shustenburg, Germany. This exceptional piece contains multiple ammonites preserved together in their natural matrix, making it both an impressive display piece and a scientifically valuable specimen. The photographs show the exact fossil you will receive, ensuring complete authenticity and transparency.

Geological Age & Formation

Amaltheus gibbosus thrived approximately 190 to 183 million years ago during the Upper Pliensbachian stage of the Early Jurassic. The Shustenburg region was, at that time, submerged beneath warm, shallow epicontinental seas. Fine-grained marine sediments settled over the sea floor, burying ammonites soon after death and allowing their shells to be preserved in extraordinary detail. The locality is renowned among collectors and researchers for its exceptional preservation of Early Jurassic marine life, often retaining both intricate surface ornamentation and well-defined suture lines.

Species Identification & Morphology

Belonging to the family Amaltheidae within the superfamily Eoderoceratoidea and order Ammonitida, Amaltheus gibbosus is recognised by its moderately involute, compressed shell with sharp ribbing and a distinctive keel along the venter. The ribs are strong and regularly spaced, sometimes branching towards the outer edge, giving the shell a striking symmetry. In this specimen, multiple individuals are preserved together, displaying varied growth stages from smaller juveniles to more mature forms.

The suture lines—complex patterns marking the chamber boundaries—are a key feature in ammonite identification and are visible on well-preserved areas of this specimen. These intricate details enhance both its aesthetic and scientific value.

Collector Highlights

  • Preservation: Outstanding, with multiple ammonites preserved in life-like arrangement on a natural rock matrix.
  • Authenticity: 100% genuine fossils, supplied with a Certificate of Authenticity.
  • Provenance: Shustenburg, Germany – Upper Pliensbachian, Early Jurassic marine deposits.
  • Display Quality: Large, attractive matrix with multiple complete ammonites, making it ideal for cabinet display or educational use.
  • Rarity: Multi-fossil ammonite plates of this species and quality from Shustenburg are increasingly scarce on the fossil market.

Paleoenvironment & Scientific Importance

During the Early Jurassic, Amaltheus gibbosus inhabited shallow, nutrient-rich seas, likely preying upon small crustaceans, mollusks, and other invertebrates. As nektonic predators, they swam actively using jet propulsion, with their coiled shells acting as buoyancy devices. The chambered phragmocone allowed for precise control of buoyancy, enabling them to occupy different depths in the water column.

The presence of multiple individuals on one matrix provides a rare snapshot of the paleoecology of the time. Such groupings can offer valuable insight into ammonite behaviour, population structure, and the depositional environment in which they were fossilised. Amaltheus gibbosus is also an important index fossil for the Upper Pliensbachian, allowing geologists to date and correlate marine strata across Europe with high accuracy.

A Superb Addition to Any Collection

This multi-fossil Amaltheus gibbosus specimen combines scientific value with striking visual impact. The natural arrangement of multiple ammonites on a single slab creates a display piece that is both historically significant and aesthetically captivating, making it an ideal choice for fossil collectors, geology enthusiasts, educators, and natural history displays.

All of our fossils are 100% genuine specimens and come with a Certificate of Authenticity. The fossil pictured is the exact specimen you will receive.

Additional information

Era

Jurassic
Origin

Germany

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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