Reineckeia anceps Fossil Ammonite with Cidarid Echinoid Spine, Lower Callovian, Jurassic – France – Genuine with Certificate of Authenticity

Description

Reineckeia anceps Fossil Ammonite with Cidarid Echinoid Spine – Lower Callovian, Jurassic – France

100% Genuine Fossil with Certificate of Authenticity

This remarkable Reineckeia anceps fossil ammonite comes with an attached Cidarid echinoid spine, a rare and exceptional find from the Lower Callovian stage of the Jurassic Period (~166 million years ago). Discovered in France, this ammonite specimen offers a glimpse into Jurassic marine life and represents a unique combination of two different fossilized organisms. The Reineckeia anceps is a well-preserved ammonite species, while the Cidarid echinoid spine is a rare addition to this specimen, further enhancing its appeal.

Geological and Fossil Information:

• Fossil Type: Reineckeia anceps Fossil Ammonite with Cidarid Echinoid Spine
• Species: Reineckeia anceps
• Morphology Features: The Reineckeia anceps ammonite is recognized for its distinctive spiral shape, with well-defined ribs that demonstrate its growth. The fossil is notable for its preservation, showing clear growth lines and a robust, spiral shell. The Cidarid echinoid spine is embedded within the ammonite’s structure, adding a layer of interest to the fossil, as it provides insight into the Jurassic marine ecosystem.
• Geological Stage: Lower Callovian, Jurassic (~166 million years ago)
• Depositional Environment: The ammonite and Cidarid echinoid spine were both preserved in a shallow marine environment typical of the Callovian seas. The France region, especially known for its Jurassic deposits, has yielded exceptional fossils, making this specimen a valuable find.
• Biozone: The fossil is part of the Lower Callovian biozone, a period rich in marine life, including various ammonites and marine invertebrates like echinoids.
• Family: Reineckeiidae
• Super Family: Ammonitoidea
• Order: Ammonitida
• Formally Identified By: This fossil has been professionally identified based on its distinct spiral ammonite shell and the embedded echinoid spine, making it a well-documented specimen with verified provenance.

Size and Visuals:

The fossil measures approximately 3.5 inches in diameter. A scale rule (1cm squares) is included in the attached photo for accurate size reference. The photo shows the actual specimen you will receive, carefully chosen to highlight its unique combination of ammonite and echinoid fossilization.

Authenticity and Certification:

All of our fossils are 100% genuine specimens and come with a Certificate of Authenticity, ensuring the provenance and authenticity of the fossil. This Reineckeia anceps ammonite with Cidarid echinoid spine from the Lower Callovian stage of the Jurassic Period is a rare and well-preserved example of Jurassic marine life, making it a fantastic addition to any fossil collection.