<?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>1405-3322</journal-id>
<journal-title><![CDATA[Boletín de la Sociedad Geológica Mexicana]]></journal-title>
<abbrev-journal-title><![CDATA[Bol. Soc. Geol. Mex]]></abbrev-journal-title>
<issn>1405-3322</issn>
<publisher>
<publisher-name><![CDATA[Sociedad Geológica Mexicana A.C.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1405-33222017000300591</article-id>
<article-id pub-id-type="doi">10.18268/bsgm2017v69n3a5</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Aspectos paleobiológicos de dos ejemplares de Mammuthus columbi (Mammalia, Proboscidea, Elephantidae) del Pleistoceno de Puebla, centro de México]]></article-title>
<article-title xml:lang="en"><![CDATA[Paleobiological appraisal of two specimens of Pleistocene Mammuthus columbi (Mammalia, Proboscidea, Elephantidae) in Puebla, central Mexico]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Carbot-Chanona]]></surname>
<given-names><![CDATA[Gerardo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Lagunas-Rodríguez]]></surname>
<given-names><![CDATA[Zaid]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Jiménez-Moreno]]></surname>
<given-names><![CDATA[Francisco Javier]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Suárez]]></surname>
<given-names><![CDATA[Sergio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Museo de Paleontología &#8220;Eliseo Palacios Aguilera&#8221;  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>México</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,INAH  ]]></institution>
<addr-line><![CDATA[ Puebla]]></addr-line>
<country>México</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Benemérita Universidad Autónoma de Puebla Posgrado en Ciencias Ambientales ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2017</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2017</year>
</pub-date>
<volume>69</volume>
<numero>3</numero>
<fpage>591</fpage>
<lpage>609</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1405-33222017000300591&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1405-33222017000300591&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1405-33222017000300591&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Se describen formalmente dos ejemplares de Mammuthus columbi (CRINAH-2274 y CRINAH-2275), con base en elementos craneales, apendiculares y molares aislados, procedentes de dos localidades del Pleistoceno de la parte centro-este de Puebla y se comentan algunos aspectos paleobiológicos. La asignación específica de los ejemplares se basa principalmente en las características de los M3, los cuales exhiben una frecuencia lamelar de 5 a 7, esmalte fuertemente crenulado con un grosor de 1.5 a 3.8 mm y poseen de 20 a 22 láminas. Se estimó la edad de ambos individuos; el ejemplar CRINAH-2274 tiene 34 AEA, mientras que la edad estimada para CRINAH-2275 fue de 37 a 41 AEA. Sólo pudo establecerse el sexo de CRINAH-2274, el cual es un macho. Por último, se realizó un análisis de ángulos de mesodesgaste para caracterizar la dieta y el hábitat; este método se usa por primera vez en México. Nuestros resultados muestran que ambos individuos eran estrictamente pacedores (&gt; 130°) con una dieta basada principalmente en pastos. Lo anterior sugiere la existencia de hábitats abiertos en la región centro-este de Puebla durante el Pleistoceno.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract Two specimens of Mammuthus columbi from two Pleistocene localities in the central-eastern of Puebla are formally described (CRINAH-2274 and CRINAH-2275), based on cranial, appendicular elements and isolated molar, and some paleobiological aspects are discussed. The specific assignment of the specimens is based mainly on the characteristics of the M3, which exhibit a lamellar frequency of 5 to 7, strongly crenulated enamel with a thickness of 1.5 to 3.8 mm and has 20 to 22 plates. The age of both individuals was estimated; the CRINAH-2274 specimen has 34 AEY, while the estimated age for CRINAH-2275 was 37 to 41 AEY. Only the sex of CRINAH-2274 could be established, which is a male. Lastly, mesowear angle analysis was carried out to characterize the diet and habitat; this method is used for the firts time in Mexico. Our results show that both specimens were strictly grazers (&gt; 130°) with a diet based mainly on grasses. This suggests the existence of open habitats in the central-eastern region of Puebla in the Pleistocene.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Mamuts]]></kwd>
<kwd lng="es"><![CDATA[paleobiología]]></kwd>
<kwd lng="es"><![CDATA[ángulos de mesodesgaste]]></kwd>
<kwd lng="es"><![CDATA[preferencia de hábitat]]></kwd>
<kwd lng="es"><![CDATA[Puebla]]></kwd>
<kwd lng="en"><![CDATA[Mamooths]]></kwd>
<kwd lng="en"><![CDATA[paleobiology]]></kwd>
<kwd lng="en"><![CDATA[mesowear angle]]></kwd>
<kwd lng="en"><![CDATA[habitat preference]]></kwd>
<kwd lng="en"><![CDATA[Puebla]]></kwd>
</kwd-group>
</article-meta>
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