கடற்குடுவை: திருத்தங்களுக்கு இடையிலான வேறுபாடு

| fossil_range={{fossil range|520|0|earliest=555|text=[[கேம்பிரியக் காலம், நிலை-3]]–அண்மையது |ref=<ref name="Fedonkin2012">{{Cite journal | last1 = Fedonkin | first1 = M. A. | last2 = Vickers-Rich | first2 = P. | last3 = Swalla | first3 = B. J. | last4 = Trusler | first4 = P. | last5 = Hall | first5 = M. | title = A new metazoan from the Vendian of the White Sea, Russia, with possible affinities to the ascidians | journal = Paleontological Journal | volume = 46 | pages = 1–11 | year = 2012 | doi = 10.1134/S0031030112010042 }}</ref>}}[tentative]

| name = கடற்குடுவைகள் <br />(Tunicates)