<?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>0256-7024</journal-id>
<journal-title><![CDATA[Revista Geológica de América Central]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. Geol. Amér. Central]]></abbrev-journal-title>
<issn>0256-7024</issn>
<publisher>
<publisher-name><![CDATA[Universidad de Costa Rica]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0256-70242023000100075</article-id>
<article-id pub-id-type="doi">10.15517/rgac.2023.55169</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Consideraciones taxonómicas acerca de la paleoictiofauna de la localidad de Alto Guayacán, Formación Uscari, Mioceno Tardío-Plioceno Temprano (N17 a N19): registro del género Parascyllium]]></article-title>
<article-title xml:lang="en"><![CDATA[Taxonomic considerations about the paleo-ichthyofauna of the locality of Alto Guayacán, Uscari Formation, late Miocene-early Pliocene (N17 a N19): record of the genus Parascyllium]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Calvo]]></surname>
<given-names><![CDATA[Cristian]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Laurito]]></surname>
<given-names><![CDATA[César A.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Valerio]]></surname>
<given-names><![CDATA[Ana L.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Museo Nacional de Costa Rica (MNCR) Departamento de Historia Natural ]]></institution>
<addr-line><![CDATA[ San José]]></addr-line>
<country>Costa Rica</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Museo Nacional de Costa Rica (MNCR) Departamento de Historia Natural ]]></institution>
<addr-line><![CDATA[ San José]]></addr-line>
<country>Costa Rica</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Museo Nacional de Costa Rica (MNCR) Departamento de Historia Natural Sección de Geología]]></institution>
<addr-line><![CDATA[ San José]]></addr-line>
<country>Costa Rica</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2023</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2023</year>
</pub-date>
<numero>68</numero>
<fpage>75</fpage>
<lpage>82</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.sa.cr/scielo.php?script=sci_arttext&amp;pid=S0256-70242023000100075&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.sa.cr/scielo.php?script=sci_abstract&amp;pid=S0256-70242023000100075&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.sa.cr/scielo.php?script=sci_pdf&amp;pid=S0256-70242023000100075&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Se registra por primera vez para el Cenozoico del Caribe y la América Neotropical el género Parascyllium. En la actualidad las 5 especies existentes del género se restringen a las aguas meridionales de Australia y a nivel mundial los registros fósiles de Parascyllium son sumamente escasos, de allí que el registro fósil costarricense sea un hecho tan significativo.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract The genus Parascyllium is recorded for the first time for the Cenozoic of the Caribbean and Neotropical America Region. Currently the 5 extant species of the genus are restricted to southern Australian waters, and the worldwide fossil records of Parascyllium are extremely scarce, which is why the Costa Rican fossil record is such a significant finding.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Orectolobiformes]]></kwd>
<kwd lng="es"><![CDATA[Parascylliidae]]></kwd>
<kwd lng="es"><![CDATA[Formación Uscari]]></kwd>
<kwd lng="es"><![CDATA[Neógeno]]></kwd>
<kwd lng="es"><![CDATA[Costa Rica]]></kwd>
<kwd lng="en"><![CDATA[Orectolobiformes]]></kwd>
<kwd lng="en"><![CDATA[Parascylliidae]]></kwd>
<kwd lng="en"><![CDATA[Uscari Formation]]></kwd>
<kwd lng="en"><![CDATA[Neogene]]></kwd>
<kwd lng="en"><![CDATA[Costa Rica]]></kwd>
</kwd-group>
</article-meta>
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