Английская Википедия:Helicocystis
Материал из Онлайн справочника
Шаблон:Short description Шаблон:Speciesbox
Helicocystis is a stalked, spiralling pentaradial echinoderm known from the Cambrian Jbel Wawrmast Formation.
References
Шаблон:Short description Шаблон:Speciesbox
Helicocystis is a stalked, spiralling pentaradial echinoderm known from the Cambrian Jbel Wawrmast Formation.