<?xml version="1.0" encoding="utf-8"?><mads xmlns="http://www.loc.gov/mads/" xmlns:mods="http://www.loc.gov/mods/v3" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.loc.gov/mads/
mads.xsd"><authority><topic authority="http://AATesaurus.cultura.gencat.cat/aat/getty_en">Thaliacea</topic></authority><related type="broader"><topic>Tunicata</topic></related><variant type="other"><topic>thaliacean</topic></variant><variant type="other"><topic>thaliaceans</topic></variant> <note xml:lang="en"><![CDATA[ Small class of marine tunicates that are free-floating for their entire lifespan; they have an atrial aperture directed toward the rear of each zooid, and asexual buds that form from a ventral stolon. Sometimes classified as an order instead of a class. ]]></note></mads>