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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Subplanites reisi Ammonite Fossil Lower Tithonian Jurassic Cretaceous Germany Certified Specimen

Subplanites reisi Ammonite Fossil Lower Tithonian Jurassic Cretaceous Germany Certified Specimen

£14.40

Authentic Subplanites reisi Ammonite Fossil from Germany

Presented here is a genuine Subplanites reisi ammonite fossil, dating to the Lower Tithonian stage of the Late Jurassic, leading into the Cretaceous period. Discovered in fossil-bearing strata of Germany, this specimen represents a marine cephalopod that lived approximately 150 million years ago. The fossil shown in the photographs is the exact specimen you will receive, pictured alongside a 1 cm scale cube for full accuracy of size. Every fossil we supply is 100% authentic and accompanied by a Certificate of Authenticity, guaranteeing its provenance and scientific value.

Geological Setting and Age

The Tithonian stage (circa 152–145 million years ago) is the final subdivision of the Jurassic, marking an important interval before the dawn of the Cretaceous. Fossils from this stage in Germany are often preserved in fine-grained limestones and marls, indicative of shallow marine depositional environments. These seas were rich with ammonites, belemnites, bivalves, and marine reptiles, making them a vital window into Late Jurassic biodiversity. Ammonites such as Subplanites reisi are particularly valuable because they serve as biostratigraphic index fossils, helping geologists and palaeontologists to date and correlate sedimentary rock layers across Europe.

Scientific Classification

  • Class: Cephalopoda
  • Subclass: Ammonoidea
  • Order: Ammonitida
  • Superfamily: Perisphinctoidea
  • Family: Perisphinctidae
  • Genus: Subplanites
  • Species: Subplanites reisi

This ammonite belongs to the Perisphinctidae, a family renowned for its widespread distribution and evolutionary success during the Late Jurassic. Members of this group are frequently used to define specific ammonite zones within the Tithonian, making them essential to the study of Jurassic stratigraphy.

Morphological Features

The shell of Subplanites reisi typically shows an involute to moderately evolute coiling, with relatively compressed whorls and finely ribbed ornamentation. The ribs may be slightly sinuous and evenly spaced, giving the fossil a distinctive texture. The suture lines are complex, with intricately frilled patterns characteristic of ammonites in this family. Such features highlight both the functional adaptations of the ammonite shell and its beauty as a collector’s specimen. The streamlined form would have assisted this cephalopod in navigating open marine waters while preying on smaller invertebrates.

Palaeontological Importance

Fossils of Subplanites have played an important role in refining the zonal framework of the Lower Tithonian biozones. Their evolutionary developments and wide geographic range allow them to be used as precise markers for identifying geological horizons. This makes specimens such as this not only visually striking but also of significant scientific relevance. Each ammonite encapsulates a story of adaptation and survival in the face of shifting seas and ecosystems, just before the major transitions that defined the Early Cretaceous.

Collector and Display Value

This Subplanites reisi ammonite fossil from Germany is a carefully selected specimen that combines scientific value with natural beauty. Its distinctive ribbing and excellent preservation make it an ideal display fossil, perfect for collectors, educators, or anyone passionate about Earth’s history. With its well-documented geological context, it also serves as a valuable research and teaching specimen.

All of our fossils are supplied with a Certificate of Authenticity, ensuring their status as genuine and responsibly sourced. This ammonite represents not only an ancient marine predator but also a unique piece of natural history that has survived for over 150 million years, now ready to be part of your collection.

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Description

Authentic Subplanites reisi Ammonite Fossil from Germany

Presented here is a genuine Subplanites reisi ammonite fossil, dating to the Lower Tithonian stage of the Late Jurassic, leading into the Cretaceous period. Discovered in fossil-bearing strata of Germany, this specimen represents a marine cephalopod that lived approximately 150 million years ago. The fossil shown in the photographs is the exact specimen you will receive, pictured alongside a 1 cm scale cube for full accuracy of size. Every fossil we supply is 100% authentic and accompanied by a Certificate of Authenticity, guaranteeing its provenance and scientific value.

Geological Setting and Age

The Tithonian stage (circa 152–145 million years ago) is the final subdivision of the Jurassic, marking an important interval before the dawn of the Cretaceous. Fossils from this stage in Germany are often preserved in fine-grained limestones and marls, indicative of shallow marine depositional environments. These seas were rich with ammonites, belemnites, bivalves, and marine reptiles, making them a vital window into Late Jurassic biodiversity. Ammonites such as Subplanites reisi are particularly valuable because they serve as biostratigraphic index fossils, helping geologists and palaeontologists to date and correlate sedimentary rock layers across Europe.

Scientific Classification

  • Class: Cephalopoda
  • Subclass: Ammonoidea
  • Order: Ammonitida
  • Superfamily: Perisphinctoidea
  • Family: Perisphinctidae
  • Genus: Subplanites
  • Species: Subplanites reisi

This ammonite belongs to the Perisphinctidae, a family renowned for its widespread distribution and evolutionary success during the Late Jurassic. Members of this group are frequently used to define specific ammonite zones within the Tithonian, making them essential to the study of Jurassic stratigraphy.

Morphological Features

The shell of Subplanites reisi typically shows an involute to moderately evolute coiling, with relatively compressed whorls and finely ribbed ornamentation. The ribs may be slightly sinuous and evenly spaced, giving the fossil a distinctive texture. The suture lines are complex, with intricately frilled patterns characteristic of ammonites in this family. Such features highlight both the functional adaptations of the ammonite shell and its beauty as a collector’s specimen. The streamlined form would have assisted this cephalopod in navigating open marine waters while preying on smaller invertebrates.

Palaeontological Importance

Fossils of Subplanites have played an important role in refining the zonal framework of the Lower Tithonian biozones. Their evolutionary developments and wide geographic range allow them to be used as precise markers for identifying geological horizons. This makes specimens such as this not only visually striking but also of significant scientific relevance. Each ammonite encapsulates a story of adaptation and survival in the face of shifting seas and ecosystems, just before the major transitions that defined the Early Cretaceous.

Collector and Display Value

This Subplanites reisi ammonite fossil from Germany is a carefully selected specimen that combines scientific value with natural beauty. Its distinctive ribbing and excellent preservation make it an ideal display fossil, perfect for collectors, educators, or anyone passionate about Earth’s history. With its well-documented geological context, it also serves as a valuable research and teaching specimen.

All of our fossils are supplied with a Certificate of Authenticity, ensuring their status as genuine and responsibly sourced. This ammonite represents not only an ancient marine predator but also a unique piece of natural history that has survived for over 150 million years, now ready to be part of your collection.

Additional information

Era

Cretaceous, Jurassic
Origin

Germany

Cretaceous Information

The Cretaceous Period (145–66 million years ago) was the final era of the Mesozoic, marked by the dominance of dinosaurs and the rise of flowering plants. It had a warm, greenhouse climate, with high sea levels that created vast shallow inland seas. Marine life flourished, including mosasaurs, ammonites, and rudist reefs, while the land was ruled by iconic dinosaurs like Tyrannosaurus rex, Triceratops, and Spinosaurus. Mammals and birds diversified, and insects thrived. The period ended with the mass extinction event, likely caused by an asteroid impact, wiping out the dinosaurs and paving the way for the rise of mammals in the Cenozoic.

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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