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.
This listing features a finely preserved fossil goniatite of the species Gyroceratites gracilis, collected from Middle Devonian strata in Germany. Goniatites are ancient ammonoid cephalopods and are direct evolutionary ancestors to later ammonites.
Fossil Type & Species:
Type: Fossilised Goniatite (Ammonoid)
Species:Gyroceratites gracilis
Authority: Formally described in historical European paleontological literature (specific author uncertain)
Geological Context:
Era: Paleozoic
Period: Devonian
Stage: Middle Devonian (~393–383 million years ago)
Locality: Germany
Formation: Likely carbonate or marl-rich marine sedimentary deposits
Depositional Environment: Warm, shallow epicontinental sea with high biodiversity
Morphological Features:
Delicately coiled and compressed planispiral shell
Fine ribbing and suture patterns typical of early ammonoids
Graceful whorls with narrow cross-sections – indicative of a nektonic lifestyle
Scientific Notes:
Belongs to a group of early ammonoid cephalopods known as Goniatitida, ancestors of later Jurassic and Cretaceous ammonites
Valuable for stratigraphic correlation in Devonian marine sediments
Represents an important transitional form in cephalopod evolution
Taxonomy:
Order: Goniatitida
Superfamily: Anarcestaceae (tentatively assigned)
Family: Unknown / debated (rarely preserved with enough diagnostic detail for conclusive assignment)
Authenticity & Display:
All of our fossils are 100% Genuine Specimens and come with a Certificate of Authenticity. The fossil you see in the photograph is the actual specimen you will receive.
Please refer to the image for full sizing details – scale cube = 1cm.
This is a superb example of an early ammonoid from the Devonian seas, perfect for collectors, educators, and anyone interested in Paleozoic marine life and the origins of ammonites.
This listing features a finely preserved fossil goniatite of the species Gyroceratites gracilis, collected from Middle Devonian strata in Germany. Goniatites are ancient ammonoid cephalopods and are direct evolutionary ancestors to later ammonites.
Fossil Type & Species:
Type: Fossilised Goniatite (Ammonoid)
Species:Gyroceratites gracilis
Authority: Formally described in historical European paleontological literature (specific author uncertain)
Geological Context:
Era: Paleozoic
Period: Devonian
Stage: Middle Devonian (~393–383 million years ago)
Locality: Germany
Formation: Likely carbonate or marl-rich marine sedimentary deposits
Depositional Environment: Warm, shallow epicontinental sea with high biodiversity
Morphological Features:
Delicately coiled and compressed planispiral shell
Fine ribbing and suture patterns typical of early ammonoids
Graceful whorls with narrow cross-sections – indicative of a nektonic lifestyle
Scientific Notes:
Belongs to a group of early ammonoid cephalopods known as Goniatitida, ancestors of later Jurassic and Cretaceous ammonites
Valuable for stratigraphic correlation in Devonian marine sediments
Represents an important transitional form in cephalopod evolution
Taxonomy:
Order: Goniatitida
Superfamily: Anarcestaceae (tentatively assigned)
Family: Unknown / debated (rarely preserved with enough diagnostic detail for conclusive assignment)
Authenticity & Display:
All of our fossils are 100% Genuine Specimens and come with a Certificate of Authenticity. The fossil you see in the photograph is the actual specimen you will receive.
Please refer to the image for full sizing details – scale cube = 1cm.
This is a superb example of an early ammonoid from the Devonian seas, perfect for collectors, educators, and anyone interested in Paleozoic marine life and the origins of ammonites.
Additional information
Era
Devonian
Origin
Germany
Devonian Information
The Devonian Period (419–359 million years ago), known as the "Age of Fishes," was a time of major evolutionary advances in both marine and terrestrial life. The oceans were dominated by armored placoderm fish, early sharks, and lobe-finned fish like Tiktaalik, which had features that helped vertebrates transition to land. Coral reefs flourished, and ammonites became more diverse. On land, the first forests appeared, with early trees like Archaeopteris, leading to a drop in atmospheric carbon dioxide and climate cooling. The first tetrapods (four-legged vertebrates) began evolving from fish, marking a critical step in the evolution of amphibians. The period ended with the Devonian extinction, likely caused by ocean anoxia and climate shifts, wiping out many marine species and reshaping ecosystems.
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