- Thaliacea, class Thaliacea - small class of free-swimming tunicates; sometimes classified as an order
--1 is a kind of class
--1 is a member of
--1 has members: Salpidae, family Salpidae; Doliolidae, family DoliolidaeUrochordata, subphylum Urochordata, Urochorda, subphylum Urochorda, Tunicata, subphylum Tunicata