<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>1026-8774</journal-id>
<journal-title><![CDATA[Revista mexicana de ciencias geológicas]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. mex. cienc. geol]]></abbrev-journal-title>
<issn>1026-8774</issn>
<publisher>
<publisher-name><![CDATA[Universidad Nacional Autónoma de México, Instituto de Geología]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1026-87742023000200214</article-id>
<article-id pub-id-type="doi">10.22201/cgeo.20072902e.2023.2.1738</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[First record of a complete humerus of Agriotherium (mammalia-ursidae) from the early-late Hemphillian of Zacatecas, Mexico]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Carranza-Castañeda]]></surname>
<given-names><![CDATA[Oscar]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Wang]]></surname>
<given-names><![CDATA[Xiaoming]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Nacional Autónoma de México Centro de Geociencias ]]></institution>
<addr-line><![CDATA[Querétaro Querétaro]]></addr-line>
<country>México</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Natural History Museum of Los Angeles Department of Vertebrate Paleontology ]]></institution>
<addr-line><![CDATA[Los Angeles CA]]></addr-line>
<country>Estados Unidos</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Chinese Academy of Sciences Institute of Vertebrate Paleontology and Paleoanthropology ]]></institution>
<addr-line><![CDATA[Beijing ]]></addr-line>
<country>China</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2023</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2023</year>
</pub-date>
<volume>40</volume>
<numero>2</numero>
<fpage>214</fpage>
<lpage>226</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1026-87742023000200214&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1026-87742023000200214&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1026-87742023000200214&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT A complete humerus referred to Agriotherium is described, collected from early-late Hemphillian deposits from Zacatecas. Agriotherium is widely represented by isolated molars, mandibles, and maxillae in early-late Hemphillian faunas of Eurasia and North America. In the literature, postcranial elements are scarce and briefly described with little detail. The greatest diversity is known from the Langebaanweg quarry in South Africa; however, the only complete specimen is from Mexico. The proximal end is described, and the humerus shares similarities with the description of the distal end from South Africa, in which the medial epicondyle and crest of the lateral epicondyle are reduced, which can be considered as a limitation in the hunting of larger prey for food. This implies that Agriotherium was not strictly carnivorous but was a predator-scavenger with an omnivorous diet that included plants and fruits.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN Se describe un húmero completo referido a Agriotherium, recolectado en depósitos de edad lo más tardío del Henfiliano temprano de Zacatecas. Agriotherium está ampliamente representado por molares, mandíbulas y maxilares aislados en las faunas de edad Henfiliano temprano-tardío de África, Eurasia y América del Norte. En la literatura, los elementos poscraneales son escasos y descritos someramente con poco detalle. La mayor diversidad se conoce de la cantera de Langebaanweg en Sudáfrica, sin embargo, el espécimen de México es el único completo. Se describe el extremo proximal de Agriotherium que era desconocido; comparte similitudes con la descripción del extremo distal del espécimen de Sudáfrica, en el cual el epicóndilo medial y la cresta lateral del epicóndilo lateral están reducidos, esto se considera una limitación durante la caza de presas grandes para conseguir alimento. Esto implica que Agriotherium no era estrictamente carnívoro, sino también un depredador carroñero con una dieta omnívora que incluía plantas y frutas.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Ursidae]]></kwd>
<kwd lng="en"><![CDATA[Agriotherium]]></kwd>
<kwd lng="en"><![CDATA[carnivore, humerus]]></kwd>
<kwd lng="en"><![CDATA[early-late Hemphillian]]></kwd>
<kwd lng="en"><![CDATA[Juchipila basin]]></kwd>
<kwd lng="en"><![CDATA[Zacatecas]]></kwd>
<kwd lng="en"><![CDATA[Mexico]]></kwd>
<kwd lng="es"><![CDATA[Agriotherium]]></kwd>
<kwd lng="es"><![CDATA[carnívoro]]></kwd>
<kwd lng="es"><![CDATA[húmero]]></kwd>
<kwd lng="es"><![CDATA[Henfiliano temprano-tardío]]></kwd>
<kwd lng="es"><![CDATA[cuenca de Juchipila]]></kwd>
<kwd lng="es"><![CDATA[Zacatecas]]></kwd>
<kwd lng="es"><![CDATA[México]]></kwd>
</kwd-group>
</article-meta>
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