Rare Fossil Ammonite Epimayaites lemoinei Jurassic Oxfordian Madagascar | Authentic Fossil

Description

This listing features a rare and beautifully preserved fossil of Epimayaites lemoinei, a distinctive ammonite species from the Oxfordian stage of the Late Jurassic period. The specimen originates from Madagascar, a globally renowned source of premium fossil ammonites with exceptional detail and aesthetic appeal.

Geological Context:

• Fossil Type: Ammonite (Extinct marine mollusc related to squid and octopus)
• Species: Epimayaites lemoinei (Collignon, 1950)
• Order: Ammonitida
• Superfamily: Perisphinctoidea
• Family: Perisphinctidae
• Geological Stage: Oxfordian (c. 163.5 to 157.3 million years ago)
• Formation: Oxfordian marine limestones and marls of Madagascar
• Depositional Environment: Shallow tropical marine shelf with rich carbonate sedimentation

Ammonites like Epimayaites lemoinei are highly valued for both their scientific relevance and visual appeal. This species is characterised by its strongly ribbed, planispiral shell and is often preserved with excellent detail due to the fine-grained sediment of Madagascar’s Jurassic deposits.

Morphology & Notable Features:

• Involute shell with moderately compressed whorls
• Dense, bifurcating ribs extending across the flanks
• Rounded venter with fine tubercles or nodules (varies by growth stage)
• Well-developed suture patterns, typical of Perisphinctid ammonites
• Rare and sought-after species for both collectors and researchers

Biozone Association: Epimayaites lemoinei is a diagnostic ammonite from the Oxfordian and is often used in regional biostratigraphic schemes for Late Jurassic marine sequences in the southern hemisphere.

Specimen Details:

• Origin: Madagascar
• Age: Oxfordian Stage, Late Jurassic (~160 million years old)
• Scale: Scale rule square/cube = 1cm. See photographs for full sizing
• Condition: Carefully selected for preservation, detail, and completeness
• Photo: The fossil shown is the exact one you will receive

Certification & Authenticity: All of our fossils are 100% genuine specimens and come with a Certificate of Authenticity. Each piece is hand-picked for its scientific, aesthetic, and collector value.

This rare Epimayaites lemoinei ammonite is a stunning example of Late Jurassic marine life and offers a unique opportunity to own a piece of prehistoric history from Madagascar’s famous fossil beds. Perfect for collectors, educators, or as a beautiful natural history display.