Kosmoceras ornatum Ammonite Fossil, Upper Callovian, Jurassic, Mikhailov Quarry, Ryazan Russia – Alice Purnell Collection

Description

This is a striking Kosmoceras ornatum ammonite fossil from the Upper Callovian Stage of the Middle Jurassic Period, approximately 164 million years old. The specimen was discovered in the famous Mikhailov Quarry, located in the Ryazan region of Russia, a well-known site for beautifully preserved ammonites with intricate ribbing and detail.

Part of the carefully curated Alice Purnell Collection, this piece is a high-quality fossil chosen for its visual and scientific value. The listing includes clear photographs of the exact specimen you will receive, and a scale cube with 1cm squares is shown to provide precise sizing.

Geological Context:

• Location: Mikhailov Quarry, Ryazan, Russia
• Formation: Callovian marine strata
• Stage: Upper Callovian
• Period: Middle Jurassic
• Age: ~164 million years

Fossil Details:

• Species: Kosmoceras ornatum
• Type: Ammonite (extinct marine mollusc)
• Preservation: Excellent detail, with ornate ribbing and natural suture lines
• Condition: Professionally cleaned and ready for display or study

This genuine Kosmoceras ammonite is a fantastic representation of Jurassic marine life and would make a unique addition to any fossil collection, educational display, or gift for a palaeontology enthusiast. It is 100% authentic, and a Certificate of Authenticity is included with your purchase.

The photos show the exact fossil for sale. Please refer to the scale for full sizing.

Don’t miss the chance to own this rare Russian ammonite from a classic locality!