Cambrian spiral-plated echinoderms from Gondwana reveal the earliest pentaradial body plan

A. B. Smith, and S. Zamora

2013

Article

Proceedings of the Royal Society B: Biological Sciences 280(1765):

Find it at:

http://dx.doi.org/10.1098/rspb.2013.1197

Taxa discussed in this work:

• Helicocystis
• Helicocystis moroccoensis
• Helicocystitidae

Taxonomy:

• Helicocystitidae belongs to Echinodermata - Smith and Zamora (2013)
• Helicocystis belongs to Helicocystitidae - Smith and Zamora (2013)
• Helicocystis moroccoensis belongs to Helicocystis - Smith and Zamora (2013)