1. Ascidians belong to the subphylum Urochordata of the phylum

2. The three subphyla are as follows: UroChordata (tunicates)

3. Ascidians are marine sessile invertebrate animals belonging to Urochordata, Phylum Chordata

4. The remaining chordates are the tunicates (UroChordata), lancelets (CephaloChordata), and, possibly, some odd extinct groups.

5. Ascidians, invertebrates belonging to the subphylum Urochordata (Tunicata), are renowned for their great biochemical diversity, and over the last 30 years, they have …

6. Sea squirt, also called Ascidian, any member of the invertebrate class Ascidiacea (subphylum Urochordata, also called Tunicata), marine animals with some primitive vertebrate features

7. Ascidians (Phylum Chordata, Class Ascidiacea), or sea squirts, are the largest and most diverse class of the sub-phylum Tunicata (also known as Urochordata)

8. Ascidians, invertebrates belonging to the subphylum Urochordata (Tunicata), are renowned for their great biochemical diversity, and over the last 30 years, they have been shown to produce an array

9. Ascidians belong to the subphylum Urochordata of the phylum Chordata. They are marine animals—most of the species are intertidal organisms found in all seas at all depths, extending from the littoral zone down to the abyssal depths of over three miles.