<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31370415</termId><termName>Nautiloidea</termName><termType>PT</termType><termNote><![CDATA[ Ancient subclass (or order) of which Nautilus is the last surviving genus; ancient specimens are important in paleontology for dating the strata in which they appear. ]]></termNote><termCreatedDate>2026-03-30 20:39:55</termCreatedDate><relation><relationType>BT</relationType><termId>31339645</termId><termName>Cephalopoda</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31409382</termId><termName>Nautilida</termName><termType>PT</termType></relation></term>  </Zthes>