<?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>S1405-33222021000100004</article-id>
<article-id pub-id-type="doi">10.18268/bsgm2021v73n1a150220</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Nuevos registros de ictiosaurios (Reptilia: Ichthyosauria) del Jurásico Superior en Nuevo León, México]]></article-title>
<article-title xml:lang="en"><![CDATA[New occurrences of ichthyosaurs (Reptilia: Ichthyosauria) of the Upper Jurassic in Nuevo León, México]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Reyna-Hernández]]></surname>
<given-names><![CDATA[Rogelio Antonio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Silva-Martínez]]></surname>
<given-names><![CDATA[Luis Encarnación]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rivera-Sylva]]></surname>
<given-names><![CDATA[Héctor E.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Autónoma de Nuevo León Facultad de Ciencias Biológicas Laboratorio de Paleobiología]]></institution>
<addr-line><![CDATA[San Nicolás de los Garza Nuevo León]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Museo del Desierto Departamento de Paleontología ]]></institution>
<addr-line><![CDATA[Saltillo Coahuila]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2021</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2021</year>
</pub-date>
<volume>73</volume>
<numero>1</numero>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1405-33222021000100004&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1405-33222021000100004&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1405-33222021000100004&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN La diversidad paleontológica de reptiles marinos mesozoicos en el noreste de México demuestra un registro fósil considerable, compuesto por distintos órdenes, incluyendo Ichthyosauria, grupo que presenta reportes en formaciones del Jurásico de la región. Este trabajo presenta dos ejemplares colectados en Galeana, Nuevo León; los cuales están constituidos por elementos postcraneales, procedentes de la Formación La Caja, del Jurásico Superior. Estos complementan el registro fósil de la zona y contribuyen al mayor entendimiento de la diversidad faunística y paleoecológica del Paleo-Golfo de México durante el Jurásico Superior.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT The paleontological diversity of Mesozoic marine reptiles in northeastern Mexico shows an extensive fossil record, composed of different orders, including Ichthyosauria, a group with reports in Jurassic formations of the region. This paper presents two specimens collected in Galeana, Nuevo León, comprised by postcranial elements, from the La Caja Formation, of the Upper Jurassic. The mentioned specimens increase the fossil record of the area and contribute to the greater understanding of the fauna and paleoecological diversity of the Paleo-Gulf of Mexico during the Upper Jurassic.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Ichthyosauria]]></kwd>
<kwd lng="es"><![CDATA[Jurásico Superior]]></kwd>
<kwd lng="es"><![CDATA[Titoniano]]></kwd>
<kwd lng="es"><![CDATA[Formación La Caja]]></kwd>
<kwd lng="en"><![CDATA[Ichthyosauria]]></kwd>
<kwd lng="en"><![CDATA[Upper Jurassic]]></kwd>
<kwd lng="en"><![CDATA[Tithonian]]></kwd>
<kwd lng="en"><![CDATA[La Caja Formation]]></kwd>
</kwd-group>
</article-meta>
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