<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31409385</termId><termName>Ostreoida</termName><termType>PT</termType><termNote><![CDATA[ Order of about 600 species of bivalves having unequal shell valves, typically lacking hinge teeth, with a shell structure of foliated calcite, and other distinguishing characteristics. ]]></termNote><termCreatedDate>2026-03-30 20:50:04</termCreatedDate><relation><relationType>BT</relationType><termId>31370418</termId><termName>Pteriomorphia</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31435918</termId><termName>Pectinidae</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31435925</termId><termName>Ostreidae</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31435928</termId><termName>oysters</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31435930</termId><termName>Spondylidae</termName><termType>PT</termType></relation></term>  </Zthes>