RARE 8″ Proceratites schloenbachi Fossil Ammonite | Bathonian Jurassic | Madagascar | Genuine with COA

Description

RARE: Proceratites schloenbachi Fossil Ammonite (8″)

Geological Age: Bathonian, Middle Jurassic (~168.3 to 166.1 million years ago)

Location Found: Madagascar

Fossil Type: Ammonite (Extinct Marine Cephalopod)

Species: Proceratites schloenbachi

Order: Ammonitida

Superfamily: Stephanoceratoidea (tentative)

Family: Uncertain / debated (possible early relatives within Perisphinctidae)

 

Specimen Overview:

This rare 8-inch ammonite fossil is Proceratites schloenbachi, a striking and scientifically intriguing species from the Bathonian stage of the Middle Jurassic. Originating from Madagascar, a region renowned for exceptional fossil preservation, this specimen offers both scientific value and a stunning display quality.

The specimen in the photo is the exact one you will receive. A 1cm scale rule cube is included for sizing reference. Please consult the image for full details on size and preservation.

 

Geological Context & Depositional Environment:

During the Middle Jurassic, Madagascar was part of the southern supercontinent Gondwana and was covered by warm, shallow seas that promoted rich marine life and excellent conditions for fossilisation. Sediments during the Bathonian period were typically fine-grained limestones and marls, which allowed for delicate and complete preservation of ammonites.

While exact zonation can vary, the Bathonian strata in Madagascar are known to yield a diverse ammonite fauna, reflecting the evolution and radiation of early Perisphinctoid forms.

 

Morphology & Notable Features:

Proceratites schloenbachi is characterised by its moderately evolute shell, open coiling, and prominent ribbing that often bifurcates or trifurcates along the flanks. Its ornamentation is bold, with strong radial ribs that give it a sculptural appearance and aid in identification.

This 8″ specimen is an excellent example, showcasing defined ribbing, a rounded whorl section, and excellent surface preservation—making it an outstanding addition to any fossil collection.

 

Authenticity & Guarantee:

All of our fossils are 100% genuine and come with a Certificate of Authenticity. This ammonite has been professionally prepared and stabilised for safe handling and long-term display.

 

Perfect For:

• Collectors of rare and large ammonites
• Academic and museum-grade collections
• Geological and palaeontological education
• Statement natural décor or unique gifts

Bring home a beautifully preserved piece of Jurassic marine life with this rare Proceratites schloenbachi fossil ammonite from the Bathonian seas of Madagascar!