The Echinoid Directory

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

Retzneiosoma jaseneki Kroh, 2005; holotype, Langian, Middle Miocene, Retznei, Styria, Austria.  Detail of ambulacral plating, apex to the top.  The upper part shows aboral plates in external view, the lower part shopws oral plates in internal view (digital images kindly supply by Andreas Kroh).

Test width 78 mm.