<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31455284</termId><termName>Merychippus</termName><termType>PT</termType><termNote><![CDATA[ Extinct genus of horses. Fossils of Merychippus are found at many late Miocene localities throughout the United States, dating from from 17-11 million years ago. ]]></termNote><termCreatedDate>2026-03-30 21:02:33</termCreatedDate><relation><relationType>BT</relationType><termId>31436026</termId><termName>Equidae</termName><termType>PT</termType></relation></term>  </Zthes>