RARE Fossil Ammonite – Subkossmatia opis, Middle Callovian, Jurassic: Madagascar – Genuine with Certificate of Authenticity

Description

Fossil Ammonite – Subkossmatia opis

Geological Formation: Middle Callovian

Geological Period: Jurassic (~167 to 164 million years ago)

Location: Madagascar

Certificate of Authenticity Included

Scale Rule Squares / Cube = 1cm

Full sizing details in the photo

This Subkossmatia opis ammonite fossil from the Middle Callovian of the Jurassic period is a rare specimen from Madagascar. Known for its distinctive shell shape, this ammonite represents a fascinating part of the ancient marine ecosystem. Its well-preserved form provides great insight into the evolution of ammonoids during the Middle Jurassic.

Species and Morphology Information:

• Species: Subkossmatia opis
• Geological Age: Middle Callovian, Jurassic period (~167 to 164 million years ago)
• Depositional Environment: The Madagascar formation was formed in a shallow marine environment, providing ideal conditions for the preservation of ammonoid fossils.
• Morphology Features: The Subkossmatia opis exhibits a distinctive spiral shape with smooth, tightly coiled whorls. Its well-preserved shell is an excellent example of Jurassic marine life and ammonoid morphology.
• Notable Features: The Subkossmatia opis ammonite is notable for its distinctive coiling and preservation, making it a sought-after fossil for both collectors and researchers.
• Family: Kossmatiidae
• Superfamily: Ammonoidea
• Order: Ammonitida
• Biozone: The Middle Callovian biozone is characterized by distinctive ammonoid species like Subkossmatia, which were abundant in Jurassic marine ecosystems.
• Depositional Environment: The ammonite fossil was preserved in a marine environment that contributed to its excellent preservation. This fossil comes from a shallow sea environment that was active during the Middle Jurassic in Madagascar.

Size and Visuals:

This Subkossmatia opis ammonite fossil measures approximately XX inches (as shown in the photos). The scale rule in the image represents 1cm, and full-size details of the specimen are provided in the photos.

Authenticity and Certification:

This Subkossmatia opis ammonite fossil is 100% genuine and comes with a Certificate of Authenticity. The certificate verifies that this specimen was sourced from Madagascar and dates back to the Middle Callovian of the Jurassic period.

Why Buy This Fossil:

• Genuine Fossil: Comes with a Certificate of Authenticity confirming its Jurassic age and Madagascar origin.
• Rare and Collectible: This ammonite fossil is a well-preserved specimen from the Middle Callovian of Madagascar.
• Perfect for Display: This fossil ammonite is an excellent display piece for any fossil collection, museum, or natural history collection.
• Educational Value: Provides valuable insight into Jurassic marine life, ammonoid morphology, and the paleogeography of the period.

Note: The photo shown is of the actual specimen you will receive. The scale cube in the image represents 1cm, and full-size details are provided through the photos.