Table 1.

List of tunicate species considered in the cladistic analysis

Traditionally recognized higher taxonomic groupings				Species	References
Tunicata	Ascidiacea	Pleurogona	Stolidobranchiata	Botryllus schlosseri	[40]
				Botrylloides leachi, B. violaceus	[40,41]
				Styela plicata, S. montereyensis, S. gibsii	[3,42]
				Polyandrocarpa zorritensis	[3]
				Molgula socialis	[6]
				Pyura stolonifera, P. haustor	[3]
		Enterogona	Aplousobranchiata	Clavelina lepadiformis	[5]
				Diplosoma listerianum	[5]
			Phlebobranchiata	Ciona intestinalis	[4,5]
				Ascidiella aspersa
				Phallusia mammillata
				Chelyosoma productum
				Corella inflata; C. willmeriana
	Appendicularia			Oikopleura dioica; O. albicans	[43]
	Thaliacea	Pyrosomatida		Pyrosoma atlanticum	[7]
		Doliolida		Doliolum nationalis	[7]