(formally Homalozoa) Extinct subphylum (Phylum Enchinodermata) whose members have no trace of radial symmetry. The theca is depressed and asymmetrical. Homalozoa are known from Middle Cambrian to Middle Devonian rocks. Found on http://www.fossilmall.com/Science/Glossary.htm
(formally Homalozoa) Extinct subphylum (Phylum Enchinodermata) whose members have no trace of radial symmetry. The theca is depressed and asymmetrical. Homalozoa are known from Middle Cambrian to Middle Devonian rocks.