<?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>0370-3908</journal-id>
<journal-title><![CDATA[Revista de la Academia Colombiana de Ciencias Exactas, Físicas y Naturales]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. acad. colomb. cienc. exact. fis. nat.]]></abbrev-journal-title>
<issn>0370-3908</issn>
<publisher>
<publisher-name><![CDATA[Academia Colombiana de Ciencias Exactas, Físicas y Naturales]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0370-39082023000400943</article-id>
<article-id pub-id-type="doi">10.18257/raccefyn.1896</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Fossil leaves, woods, gastropods, and a crocodile tooth: Is the Amagá Formation worth exploring?]]></article-title>
<article-title xml:lang="es"><![CDATA[Fósiles de hojas, maderas, gasterópodos y un diente de cocodrilo, ¿vale la pena explorar la Formación Amagá?]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cárdenas]]></surname>
<given-names><![CDATA[Andrés]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Giraldo]]></surname>
<given-names><![CDATA[José Daniel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Monterrosa]]></surname>
<given-names><![CDATA[Daniel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Weber]]></surname>
<given-names><![CDATA[Marion]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad EAFIT Semillero de Paleontología, Área de Sistemas Naturales y Sostenibilidad Escuela de Ingeniería y Ciencias Aplicadas]]></institution>
<addr-line><![CDATA[Medellín ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Nacional de Colombia Departamento de Geociencias y Medio Ambiente Facultad de Minas]]></institution>
<addr-line><![CDATA[Medellín ]]></addr-line>
<country>Colombia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2023</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2023</year>
</pub-date>
<volume>47</volume>
<numero>185</numero>
<fpage>943</fpage>
<lpage>951</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0370-39082023000400943&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0370-39082023000400943&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0370-39082023000400943&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract We have generated a spatial framework for macrofossil searching based on the current knowledge of fossil localities and fossil beds reported for the Amagá Formation in the northwestern Andes in Colombia. Our results show that twenty-three fossil localities and ninety-five fossil beds are distributed along this sedimentary succession. Preservation potential is higher in the Lower Member, given the high accommodation space and the dominance of a meandering fluvial system, compared with the Upper Member, where there was less accommodation space with a braided fluvial system controlling it. Our findings show that even though paleontological studies are null in this area, there are several options to find terrestrial macrofossil assemblages that will allow us to investigate the possible biological role of global climatic changes and regional tectonics in the Neotropical biomes based on the Amagá Formation.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Hemos generado un marco espacial para la búsqueda de macrofósiles basado en las localidades fósiles y las capas con contenido fósil reportadas hasta hoy en la Formación Amagá localizada en los Andes noroccidentales en Colombia. Nuestros resultados muestran veintitrés localidades fósiles y noventa y cinco capas con contenido fósil que se distribuyen a lo largo de esta sucesión sedimentaria. El potencial de conservación es mayor en el Miembro Inferior debido a un mayor espacio de acomodación y al control que ejerce el predominio de un sistema fluvial meandriforme, en comparación con el Miembro Superior donde había menos espacio de acomodación y un sistema fluvial trenzado. Nuestros hallazgos muestran que a pesar de que los estudios paleontológicos son nulos en esta área, existen varias posibilidades para encontrar asociaciones de macrofósiles terrestres que permitirán investigar el posible papel biológico de los cambios climáticos globales y la tectónica regional en los biomas neotropicales de la Formación Amagá.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Paleontology]]></kwd>
<kwd lng="en"><![CDATA[Neotropics]]></kwd>
<kwd lng="en"><![CDATA[Climate change]]></kwd>
<kwd lng="en"><![CDATA[Biodiversity]]></kwd>
<kwd lng="es"><![CDATA[Paleontología]]></kwd>
<kwd lng="es"><![CDATA[Neotropico]]></kwd>
<kwd lng="es"><![CDATA[Cambio climático]]></kwd>
<kwd lng="es"><![CDATA[Biodiversidad]]></kwd>
</kwd-group>
</article-meta>
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