Tropidoceras masseanum fossil ammonite – lower pliensbachian, jurassic, lyme regis bay, uk – genuine specimen with coa

This is a genuine Tropidoceras masseanum ammonite fossil from the Lower
Pliensbachian stage of the Jurassic period, discovered in Lyme Regis Bay, United Kingdom. Ammonites were marine molluscs related to modern squid and cuttlefish, thriving in prehistoric seas for millions of years. Tropidoceras masseanum is a distinctive ammonite species, known for its strong ribbing and evolute coiling.

GEOLOGICAL INFORMATION:

• Formation: Lower Lias Group
• Age: 190-195 million years old (Lower Pliensbachian, Jurassic)
• Environment: Shallow marine seafloor deposit
• Location: Lyme Regis Bay, Dorset, UK

FOSSIL CHARACTERISTICS:

• Strong, well-defined ribbing along the shell
• Evolute coiling, with all whorls visible
• Preserved in natural limestone matrix
• Distinctive Jurassic marine species

KEY FEATURES:

• Authentic Tropidoceras masseanum fossil ammonite
• Well-preserved with clear shell details
• From the Alice Purnell Collection
• 100% genuine specimen with Certificate of Authenticity

Scale Rule / Cube = 1cm – Please see photos for accurate sizing.

All fossils are securely packaged for worldwide shipping.