The Echinoid Directory

• Home
• Introduction
• Morphology
• Keys
• Classification
• 3D models
• Index to taxa
• Glossary
• Log in

Tiaromma michelini (Agassiz & Desor, 1846), BMNH E79211. Basal Cenomanian, Upper Cretaceous, Maiden Bradley, Wiltshire, UK. Lateral view, interambulacral.

Diameter of test 26 mm.