The Echinoid Directory

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

Palaechinus quadriserialis Wright, 1865; BMNH E193. Carboniferous Limestone, Lower Carboniferous, Rathkeale, County Limerick, Ireland. Lateral view (internal mould with part of test preserved).

Diameter of specimen 33 mm.