Epimayaites transiens Ammonite Fossil Jurassic Madagascar Genuine Authentic COA

Description

Authentic Jurassic Fossil from Madagascar

This Epimayaites transiens ammonite fossil is a genuine specimen from the Upper Oxfordian stage of the Late Jurassic, collected in Madagascar. It has been carefully chosen for its striking preservation and distinctive morphology, representing both scientific importance and natural beauty. The photographs show the exact fossil you will receive, with a 1 cm scale cube provided for accurate sizing. Every specimen is supplied with a Certificate of Authenticity, guaranteeing that it is 100% genuine.

Geological Age and Provenance

Dating to approximately 163–157 million years ago, this ammonite comes from the Upper Oxfordian stage of the Jurassic Period. At that time, Madagascar was part of the ancient supercontinent Gondwana, with its coastlines bathed by the warm, shallow waters of the Tethys Ocean. Sediments deposited in these seas preserved ammonites in remarkable detail, producing fossils of great scientific and aesthetic value. Madagascar’s Jurassic beds are world-renowned for their diverse ammonite assemblages, and Epimayaites transiens is one of the distinctive species that helps define the Oxfordian record.

Species Identification and Classification

Epimayaites transiens belongs to the class Cephalopoda, order Ammonitida, superfamily Perisphinctoidea, and family Perisphinctidae. The genus Epimayaites is characterised by its robust shells and ornate ribbing, making it one of the more visually striking ammonite groups from the Oxfordian. The species transiens is particularly valuable to paleontology because of its distinct features and its role in refining the zonal subdivision of the Late Jurassic. As such, it is both a collectible fossil and an important tool for scientific study.

Morphology and Distinctive Traits

This specimen shows the diagnostic features of Epimayaites transiens. Its planispiral shell is strongly ribbed, with ribs extending across the flanks and often bifurcating near the outer whorl. The robust ribbing and tightly coiled structure gave the ammonite both strength and buoyancy control in its marine environment. The ornamentation is bold and attractive, making the fossil appealing not only to collectors but also to educators and researchers. These traits make it easy to distinguish transiens from other ammonite species of the same stage.

Scientific and Stratigraphic Importance

Epimayaites transiens is a significant ammonite species within Upper Oxfordian stratigraphy. Its occurrence within defined horizons allows geologists to date and correlate marine rock sequences with great accuracy. Ammonites such as this serve as index fossils, forming the backbone of Jurassic biostratigraphy and enabling paleontologists to reconstruct ancient marine ecosystems. The preservation of this specimen provides a window into the biodiversity of the Late Jurassic seas and the evolutionary history of the Perisphinctidae family.

Condition and Presentation

This fossil has been professionally prepared to showcase its natural features, with ribbing, shell structure, and whorl form all clearly visible. It is a unique, one-of-a-kind specimen—not a cast or reproduction. Its strong preservation ensures that both scientific and aesthetic qualities are highlighted. The images provided are of the actual specimen you will receive, ensuring complete transparency and confidence in your purchase.

Guarantee of Authenticity

All of our fossils are 100% genuine, responsibly sourced, and scientifically identified. Each specimen comes with a Certificate of Authenticity. This rare Epimayaites transiens ammonite fossil from Madagascar is a scientifically significant and visually impressive specimen, making it an excellent addition for fossil collectors, natural history enthusiasts, and educational displays.