The Thaliacea comprise a class of marine animals within the subphylum Tunicata.
Unlike their benthic relatives the ascidians, thaliaceans  are free-floating (pelagic) for their entire lifespan.
The group includes species with complex life cycles with both solitary and colonial forms.
The Thaliacea comprise a class of marine animals within the subphylum Tunicata. Unlike their benthic relatives the ascidians, thaliaceans  are free-floating (pelagic) for their entire lifespan. The group includes species with complex life cycles with both solitary and colonial forms.
Thaliacea