Honda Group, Colombia#La Victoria Formation

File:Honda (Colombia).jpg

The group was first defined by Hettner in 1892 in the area of the town after which it is named; Honda, Tolima.Acosta & Ulloa, 2002, p.34 In 1942 and 1946, the group was defined as a formation by Royo and Gómez. The first author who used the name Honda for a group, was American zoologist who studied the La Venta fauna in detail, Ruben Arthur Stirton. Subdivisions of the group have been proposed by many different authors with high detail in the different beds.Villarroel et al., 1996, p.47 Names as "Monkey Beds", "Fish Beds" and "Unit above Fish Beds" have been colloquially used to designate certain stratigraphic units based on their fossil content.Villarroel et al., 1996, p.48 The most accepted definition of the group, formations and members was proposed by Villarroel et al. in 1996 to simplify the stratigraphy in a regional sense solving the excessive subdivision into 19 units by Guerrero et al. (1994).Villarroel et al., 1996, p.51

Today, the sediments of the Honda Group are exposed in the Middle (Valle Medio del Magdalena, VMM) and Upper Magdalena Valley (Valle Superior del Magdalena, VSM) in an intermontane valley between the Central Ranges in the west and the Eastern Ranges in the east. The valley in between the two major orogenic chains is filled by the Magdalena River, the longest river of Colombia. The Upper Magdalena Valley geologically is subdivided into the Neiva Sub-basin with the Girardot Sub-basin of the southernmost Middle Magdalena Valley to the north, divided by the Natagaima Arch.López Quintero, 2007, p.1 The Neiva Sub-basin is bound by the Chusma Fault in the west and to the east by the west-verging Garzón Fault.Jiménez et al., 2012, p.186 The Mulato-Getudo Fault possibly underlies the Honda Group south of the La Miel River.Plancha 188, 2009 The Tatacoa Desert, where the type section of the Honda Group has been redefined is an unusually dry region in Colombia, caused by a mountain induced rain-shadow effect. In Middle Miocene times, the geography was more comparable to the present eastern foothills of the Andes.Kay & Madden, 1997, p.163

The tectonic history of the three mountain chains of Colombia, from west to east, the Western, Central and Eastern Ranges has been studied in detail. The Western and Central Ranges were the first to be exhumed in the Paleogene, with minor uplifts in the Eastern Ranges at this age. The onset of the regional uplift of the Eastern Ranges is dated around the Middle Miocene, with an increased rate of exhumation between 12 and 3 Ma.Sánchez et al., 2012, p.1 This caused a segmentation of the current Magdalena Basins and the Llanos Basin to the east, previously part of a larger foreland basin to the east of the Central Ranges.Parra, 2008, p.41 The León Formation in the Llanos Basin provides the first indication of the tectonic uplift of the Eastern Ranges, isolating the Llanos Basin from the Magdalena Valley.Villegas et al., 1994, p.1849

The Honda Group unconformably overlies in parts the volcanic deposits of the Prado Member,Villarroel et al., 1996, p.50 Barzalosa Formation of the Payandé Group, and in other parts the Saldaña,Carrera Ortíz, 2015, p.24 and Santa Teresa Formations.Álvarez et al., 2017, p.142 The unit is overlain by the Neiva Formation of the Gigante Group.García et al., 2009. p.85 The presence of a hiatus between the Honda Group and the Barzalosa Formation has been suggested.López Quintero, 2007, p.16 The group is characterised by two main formations; the lower La Victoria Formation and upper Villavieja Formation. Previously, the La Dorada Formation has been named as a subdivision of the Honda Group, while other authors define that unit as a member. Other names for members and formations are Cerbatana Member, also published as Cervetana Member, named after Quebrada La Cerbatana, Las Mesitas Formation, El Líbano Formation, Baraya Volcanic Member, named after Baraya, and Cerro Colorado Red Bed Member.Villarroel et al., 1996, p.49 The Perico Member of the La Dorada Formation has been made equivalent to the La Victoria Formation, as well as the El Líbano Formation.

This formation was first defined by Guerrero in his Master's thesis (1991) and further refined in his doctoral thesis in 1993. The type locality of the La Victoria Formation has been set in the La Venta area and the formation is named after the town of La Victoria, at {{convert|15|km|mi}} north-northeast of the urban centre of Villavieja. The formation, restricted to the Neiva Sub-basin,Villarroel, 1996, p.53 consists mainly of sandstones, conglomeratic sandstones and conglomerates (75%) with intercalated claystones and siltstones (25%).

The upper part of the La Victoria Formation, underlying the Villavieja Formation, is characterised by a {{convert|45|m|ft}} section of conglomerates, designated the Cerbatana Member or Cerbatana Conglomerates. The conglomerate shows trough-cross lamination and imbrication of clasts in a predominantly matrix-supported sequence, with minor clast-supported sections. The base of the conglomerate marks an erosional surface into the underlying silt and clay beds. The clasts of the conglomerate are mostly milky quartz, chert and volcanic in origin, with diameters averaging around {{convert|7|cm|in}} with a maximum of {{convert|15|cm|in}}. Conglomeratic and medium to coarse-grained sandstone banks, with a similar grain composition as the conglomerates, up to {{convert|2|m|in}} thick are intercalated between the conglomeratic sections. The sandstones are cemented by calcium carbonate in hardgrounds that sometimes form rounded concretions. The claystones and siltstones that are less commonly found in the La Victoria Formations range in thickness from {{convert|1|to|11|m|ft}} and show reddish-brown, greenish-grey and greyish colourations.Villarroel et al., 1996, p.52

File:Las catedrales - The Tatacoa Desert (4925039787).jpg

The name Villavieja Formation was first proposed by Wellman in 1968 as a member of the Honda Formation. Two years later, the author elevated the rank to a formation, as part of the Honda Group. The formation takes its name from the municipality Villavieja, Huila, {{convert|35|km|mi}} to the north-northeast of the departmental capital Neiva. The type locality is situated on the right bank of the Magdalena River in the Eastern Ranges of the Colombian Andes.

The contact between the Villavieja Formation and the underlying La Victoria Formation is concordant. The basal part of the Villavieja Formation comprises siltstones and claystones that also form the bulk of the formation with 75 percent. The remaining quarter is composed of conglomeratic sandstones. The thickness of the siltstones and claystones can exceed {{convert|8|m|ft}} and have interspersed fine- to medium-grained {{convert|10|cm|in}} thin sandstone beds. The fine sediments of the Villavieja Formation are coloured greenish, reddish-brown or bluish-grey and display weathering patterns in so-called "cauliflower erosion" structures. The light grey coarser beds, up to conglomeratic sandstone size, do not exceed {{convert|2.5|m|ft}} in thickness and commonly show a lateral transition with the silt- and claystones. The Baraya Member of the Villavieja Formation shows thin yellowish and reddish brown sandstone and siltstone levels with volcaniclastic grains.

The Honda Group extends for approximately {{convert|250|km|mi}} from the Upper to the Middle Magdalena Basin and is exposed in various locations along the right and left banks of the Magdalena River. Outcrops along the road between Girardot and Agua de Dios, Cundinamarca show a lower sequence of thick beds of greenish-yellow feldspar- and mica-rich conglomeratic sandstones, intercalated with reddish claystones and an upper level of alternating medium-to-coarse grained quartz arenites with low-angle cross stratification. These sandstones are intercalated with thick layers of fissile claystones with common calcareous sandstone concretions.ANi & Infracon, 2015, p.33 Sediments of the Honda Group restrict the course of the Sumapaz River to a narrow valley, close to its confluence with the Magdalena River.ANi & Infracon, 2015, p.45

The majority of the municipality Prado, Tolima rests upon sediments of the Honda Group.N.N., s.a., p.182 In the Middle Magdalena Basin and the eastern flank of the Central and the western flank of the Eastern Ranges, the group is subdivided into the Los Limones, San Antonio and Cambrás Formations. The total thickness of these formations in the northern original type section of the Honda Group reaches {{convert|3255|m|ft}}, while a total thickness of {{convert|5000|m|ft}} has been registered.

Thanks to the fossil abundance of the Honda Group at La Venta, the geological period of the sediments has received a separate name in the South American Mammal Ages (SALMA); Laventan, ranging from 13.8 to 11.8 Ma, as the only SALMA age defined north of the equator and in Colombia.[http://www.fossilworks.org/cgi-bin/bridge.pl?action=displayInterval&interval_no=726 Laventan] at Fossilworks.org The age of the Villavieja Formation has been estimated to be between 17.0 and 12.1 Ma,Villarroel et al., 1996, p.54 while the stratigraphically lower La Victoria Formation is dated at 13.82 to 12.38 Ma (Serravallian), based on fission track and volcanic analysis and paleomagnetic research.

The Honda Group is laterally time equivalent with the lower part of the Real Formation in the central and northern Middle Magdalena Basin,Sánchez et al., 2012, p.3 the lower part of the León Formation of the Llanos Basin,García et al., 2009. p.60 the upper range of the Ciénaga de Oro Formation of the Lower Magdalena Basin,Torres et al., 2012, p.2 and the Caja and Diablo Formations of the Llanos foothills.Acosta & Ulloa, 2002, p.22

File:Vero River estuary (extensive tropical forest wilderness), Tutuala village, with Paitchau Range background, Lautem, Timor-Leste.jpg

The Honda Group has been deposited in a fluvial environment, with the lower part of the La Victoria Formation in a meandering setting, while the upper part was formed in a braided river system. The paleocurrent was from the west to the east and east-southeast. The overlying predominantly finer grained Villavieja Formation was deposited in a meandering setting of a smaller size than those of the older La Victoria Formation. Paleocurrent analysis of the sediments in the Baraya and Cerro Colorado Members has revealed a similar flow direction as the La Victoria paleorivers, while the upper part of the Cerro Colorado Member shows an opposite trend to the west. The volcanic clasts of the formations have as provenance the Central Range volcanism, of which the volcaniclastics in the Honda Group mark its onset.Gónzalez, 2001, p.81Kroonenberg et al., 1982, p.21

The depositional boundary for the Honda Group in the east is formed by the reverse Prado-Suárez and Cambrás-Salinas-Cambao Faults.Triviño, 1993, p.29

Analysis of the "Monkey Beds" of the Honda Group, provided estimates of annual precipitation levels between {{convert|1500|and|2000|mm|in}}. Today, these levels of rainfall are associated with the transition between savanna and forest environments in lowland South America. The vegetation of the La Venta fossil assemblage was diverse due to the different biomes of the depositional environment; meandering and braided river systems in a setting at lower altitudes than the present-day elevation of more than {{convert|400|m|ft}} above mean sea level. It has been suggested that the vegetational cover of the Honda Group sedimentary sequence was not a continuous canopy forest, yet a complex pattern of different flora ecosystems. The evergreen Amazonian foothill forests of today would therefore postdate the uplift of the Eastern Ranges of the Andes.Kay & Madden, 1997, p.186 Based on vegetational and grazer diversity analysis of the La Venta fauna, it has been suggested the ecosystem resembled more that of Africa and Asia than of the modern Neotropics. Research of the paleosols found in various levels within the Honda Group suggests the presence of arid areas in close proximity to pluvial parts.Flórez et al., 2013, p.243

In the oil-producing Upper Magdalena Basin, the Honda Group is one of the reservoir formations, next to the more important Caballos and Monserrate Formations.Barrero et al., 2007, p.85Carrera Ortíz, 2015, p.25 Shales of the Honda Group function as seal rock for certain oilfields in the Upper Magdalena Basin.Carrera Ortíz, 2015, p.26 In the Tello Field in the basin, the Honda Group forms the overburden rock for the producing Monserrate reservoirs.Ramón et al., 2001, p.63

File:Arapaima close-up.jpg

{{main|La Venta (Colombia)}}

The Honda Group is the richest fossiliferous stratigraphic unit of Colombia, and one of the most important for the Miocene worldwide. At the La Venta site, numerous fossils of various orders have been recovered and are found still. The site marks a unique ecosystem showing a broad range of biodiversity. La Venta is also an important site as it represents the youngest uniquely South American faunal assemblage before the Great American Biotic Interchange; the result of the uplift of the Isthmus of Panama, of which the initial phase has been dated at around 12 Ma.De Porta, 2003, p.191 This led to a drastic alteration of the South American former island continental fauna. The Sparassodonta formed the dominant carnivorous mammal group in South America during most of the Cenozoic.

In South America, the carnivorous adaptive zone in terrestrial ecosystems was shared with other mammals; terror birds (Phorusrhacoidea), large crocodiles (Sebecidae), large snakes (Madtsoiidae and Boidae), and even occasionally frogs.Súarez, 2015, p.03 The diversity of fossil freshwater fishes and crocodilians at La Venta is the richest assemblage of South America.Kay & Madden, 1997, p.183{{in lang|es}} [http://lapaleontologiaencolombia.blogspot.com.co/2013/03/fauna-de-la-venta-flora-cangrejos-y.html Fauna de La Venta - flora, cangrejos y peces] Fossilised trunks of Goupioxylon sp. have been identified in the Honda Group.[http://www.ucmp.berkeley.edu/tertiary/mio/laventa.html The Villavieja Formation, Colombia] - University of California, Berkeley

The genus names Hondadelphys and Hondathentes, and the species epithets of Anadasypus hondanus and Scirrotherium hondaensis refer to the Honda Group. The giant sloth Brievabradys laventensis, the primate Stirtonia tatacoensis (originally described as Kondous laventicus), and the marsupial Micoureus laventicus were named after La Venta, while the primates Miocallicebus villaviejai and Stirtonia victoriae received their species epithets from the formations comprising the Honda Group.

; Didelphimorphia

; Microbiotheria

; Sparassodonta

; Paucituberculata

; Litopterna

;Notoungulata

; Cingulata

;Pilosa

; Crocodilians

; Turtles

; Snakes

; Lizards

; Frogs

{{clear}}

{{wide image|El Desierto de Tatacoah, Colombia - Panorama.jpg|1200px|align-cap=center|Panorama of the Tatacoa Desert, reassigned type section of the Honda Group}}

;Legend

{{div col|colwidth=29em}}

• group
• important formation
• fossiliferous formation
• minor formation
• {{small|(age in Ma)}}
• proximal Llanos (Medina){{refn|group=note|based on Duarte et al. (2019),Duarte et al., 2019 García González et al. (2009),García González et al., 2009 and geological report of VillavicencioPulido & Gómez, 2001}}
• distal Llanos (Saltarin 1A well){{refn|group=note|based on Duarte et al. (2019) and the hydrocarbon potential evaluation performed by the UIS and ANH in 2009García González et al., 2009, p.60}}

{{div col end}}

__NOTOC__

• Cretaceous stratigraphy of the central Colombian Eastern Ranges
• Early Cretaceous stratigraphy of Iberia

{{reflist|group=note}}

{{reflist|20em}}

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;National

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;Regional

• {{cite map |last=Reyes |first=Germán |last2=Cardozo |first2=Ana Milena |year=1999 |title=Mapa Geológico de Arauca 1:250,000 |url=https://drive.google.com/file/d/0BwFQPMJEi17QUjZfUFZpTWJRNXc/view |publisher=INGEOMINAS |pages=1 |access-date=2017-09-21}}
• {{cite map |last=Acosta |first=Jorge |last2=Ulloa |first2=Carlos |last3=García |first3=Pilar |last4=Solano |first4=Orlando |year=1999 |title=Mapa Geológico de Cundinamarca |url=https://drive.google.com/file/d/0BwFQPMJEi17QcW1lZ2ZNWUc5dHM/view |publisher=INGEOMINAS |pages=1 |access-date=2017-09-21}}
• {{cite map |last=Rodríguez |first=Antonio José |year=2002 |title=Mapa Geológico del Meta 1:500,000 |url=https://drive.google.com/file/d/0BwFQPMJEi17QZmw3OXJmWkhRSGM/view |publisher=INGEOMINAS |pages=1 |access-date=2017-09-21 |url-access=subscription}}

• {{cite map |last=Fúquen |first=Jaime |last2=Ceballos |first2=Leonardo |last3=Pedraza |first3=Andrea |last4=Marín |first4=Edwin |year=2010 |title=Plancha 99 - Villa del Rosario - 1:100,000 |url=http://recordcenter.sgc.gov.co/B13/23008010024473/mapa/pdf/2105244731300002.pdf |publisher=INGEOMINAS |pages=1 |access-date=2018-06-01}}
• {{cite map |last=Royero |first=José María |last2=Zambrano |first2=J. |last3=Daconte |first3=Rommel |last4=Mendoza |first4=H. |last5=Vargas |first5=Rodrigo |year=1999 |title=Plancha 111 - Toledo - 1:100,000 |url=https://drive.google.com/open?id=0BwFQPMJEi17QUXZRRDMyZU5jVTQ |publisher=INGEOMINAS |pages=1 |access-date=2017-06-06 |url-access=subscription}}
• {{cite map |last=López |first=Carolina |last2=Dávila |first2=Camilo |last3=González |first3=Francisco |last4=Parra |first4=Eduardo |last5=Chaquea |first5=Claudia |last6=Ojeda |first6=Carolina |last7=Q. |first7=Carlos |last8=Espinel |first8=Valentina |last9=Lancheros |first9=José A. |year=2011 |title=Plancha 139 - Betoyes - 1:100,000 |url=https://drive.google.com/open?id=0BwFQPMJEi17QN0FsY1dIX3VBemc |publisher=INGEOMINAS |pages=1 |access-date=2017-06-06 |url-access=subscription}}
• {{cite map |last=López |first=Carolina |last2=Dávila |first2=Camilo |last3=González |first3=Francisco |last4=Parra |first4=Eduardo |last5=Chaquea |first5=Claudia |last6=Ojeda |first6=Carolina |last7=Q. |first7=Carlos |last8=Espinel |first8=Valentina |last9=Lancheros |first9=José A. |year=2011 |title=Plancha 155 - Puerto Rondón - 1:100,000 |url=https://drive.google.com/open?id=0BwFQPMJEi17QVG9nSVU5TmpGRWc |publisher=INGEOMINAS |pages=1 |access-date=2017-06-06 |url-access=subscription}}
• {{cite map |last=Unión Temporal |first=G&H |year=2015 |title=Plancha 177 - Río Agua Clara - 1:100,000 |publisher=Servicio Geológico Colombiano |pages=1}}
• {{cite map |last=Ulloa |first=Carlos E |last2=Escovar |first2=Ricardo |last3=Pacheco |first3=Adolfo H. |year=2009 |title=Plancha 230 - Monterrey - 1:100,000 |url=https://drive.google.com/open?id=0BwFQPMJEi17QWHUyb1p6cWZjNEk |publisher=INGEOMINAS |pages=1 |access-date=2017-06-06 |url-access=subscription}}
• {{cite map |last=Pulido |first=Orlando |last2=Gómez |first2=Luz Stella |last3=Marín |first3=Pedro |year=1998 |title=Plancha 266 - Villavicencio - 1:100,000 |url=https://drive.google.com/open?id=0BwFQPMJEi17QVmt4VUpnVjhBb1k |publisher=INGEOMINAS |pages=1 |access-date=2017-06-06 |url-access=subscription}}
• {{cite map |last=Duarte |first=Rafael |last2=Moreno |first2=Mauricio |last3=Morales |first3=Carlos Julio |last4=Villegas |first4=Henry |last5=Alvarado |first5=Sonia |last6=Téllez |first6=Milena |last7=Pacheco |first7=Sonia |last8=Rojas |first8=Nadia |year=2010 |title=Plancha 267 - Pachaquiaro - 1:100,000 |url=https://drive.google.com/open?id=0BwFQPMJEi17QbGt1Qk1UbU5jTTQ |publisher=INGEOMINAS |pages=1 |access-date=2017-06-06 |url-access=subscription}}
• {{cite map |last=Unión Temporal |first=G&H |year=2015 |title=Plancha 284 - Santana - 1:100,000 |url=http://recordcenter.sgc.gov.co/B15/23008010024822/Mapa/Pdf/2105248221300007.pdf |publisher=Servicio Geológico Colombiano |pages=1 |access-date=2018-06-01}}
• {{cite map |last=Unión Temporal |first=G&H |year=2015 |title=Plancha 348 - Serranía de la Macarena - 1:100,000 |url=http://recordcenter.sgc.gov.co/B15/23008010024816/Mapa/Pdf/2105248161300007.pdf |publisher=Servicio Geológico Colombiano |pages=1 |access-date=2018-06-01}}
• {{cite map |last=Unión Temporal |first=G&H |year=2015 |title=Plancha 350 - San José del Guaviare - 1:100,000 |publisher=Servicio Geológico Colombiano |pages=1}}

• {{cite map |last=Daconte |first=Rommel |last2=Salinas |first2=Rosalba |last3=Royero |first3=José María |last4=Clavijo |first4=Jairo |last5=Arias |first5=Alfonso |last6=Carvajal |first6=Luz S. |last7=López |first7=Martín E. |last8=Angarita |first8=Leonidas |last9=Mendoza |first9=Hernando |year=2009 |title=Plancha 66 - Miraflores - 1:100,000 |url=https://drive.google.com/open?id=0BwFQPMJEi17QaFJhemtSRUhQU3M |publisher=INGEOMINAS |pages=1 |access-date=2017-06-06 |url-access=subscription}}
• {{cite map |last=Daconte |first=Rommel |last2=Salinas |first2=Rosalba |year=1980 |title=Plancha 76 - Ocaña - 1:100,000 |url=https://drive.google.com/open?id=0BwFQPMJEi17QbFptaWphTDVBbm8 |publisher=INGEOMINAS |pages=1 |access-date=2017-06-06 |url-access=subscription}}
• {{cite map |last=Vargas |first=Rodrigo |last2=Arias |first2=Alfonso |year=1981 |title=Plancha 86 - Ábrego - 1:100,000 |url=https://drive.google.com/open?id=0BwFQPMJEi17QdndWaXZBRHZwY3M |publisher=INGEOMINAS |pages=1 |access-date=2017-06-06 |url-access=subscription}}

• {{cite journal |last1=García |first1=Helbert |last2=Jiménez |first2=Giovanny |year=2016 |title=Structural analysis of the Zipaquirá Anticline (Eastern Cordillera, Colombia) |journal=Boletín de Ciencias de la Tierra, Universidad Nacional de Colombia |volume=39 |issue=39 |pages=21–32|doi=10.15446/rbct.n39.50333 |doi-access=free }}
• {{cite thesis |last=Montaña Cárdenas |first=Jorge Hernando |year=2015 |title=Análisis de deformaciones y modelo estructural del frente de deformación del Piedemonte Llanero de la Cordillera Oriental de Colombia |degree=MSc |url=http://www.bdigital.unal.edu.co/49645/1/TESIS%20MSc%20JORGE%20MONTA%C3%91A%202015.pdf |publisher=Universidad Nacional de Colombia |pages=1–57 |access-date=2017-08-04}}
• {{cite report |last1=Caballero |first1=Victor M. |last2=Reyes Harker |first2=Andrés |last3=Mora |first3=Andrés |last4=Ruiz |first4=Carlos F. |last5=Parra |first5=Felipe de la |year=2013 |title=Cenozoic Paleogeographic Reconstruction of the Foreland System in Colombia and Implications on the Petroleum Systems of the Llanos Basin |publisher=AAPG International Conference, Cartagena, Colombia |pages=1–24}}
• {{cite thesis |last=Schütz |first=Christian |year=2012 |title=Combined structural and Petroleum Systems Modeling in the Eastern Cordillera Basin, Colombia |degree=MSc |publisher=Rheinisch-Westfälische Technische Hochschule Aachen & Instituto Colombiano del Petróleo |pages=1–161}}
• {{cite report |last1=Pinto Valderrama |first1=Jorge Eduardo |last2=Mora Ortiz |first2=José Pedro |last3=Reátiga Tarazona |first3=Gloria |last4=Rey Pilonieta |first4=Jorge Alberto |last5=Toloza Hormiga |first5=Silvia Johana |last6=Torres Coronado |first6=Diego Andrés |last7=Vargas Mojica |first7=David Ricardo |last8=Zafra Manrique |first8=Cristian Julián |year=2010 |title=Geología del Piedemonte Llanero en la Cordillera Oriental, departamentos de Arauca y Casanare |url=http://aplicaciones1.sgc.gov.co/Bodega/i_vector/230/08/0100/24561/documento/pdf/2105245611101000.pdf |publisher=INGEOMINAS & Universidad Industrial de Santander |pages=1–64 |access-date=2017-08-04 |archive-date=2017-08-15 |archive-url=https://web.archive.org/web/20170815103042/http://aplicaciones1.sgc.gov.co/Bodega/i_vector/230/08/0100/24561/documento/pdf/2105245611101000.pdf |url-status=dead }}
• {{cite report |last1=Cortés |first1=Martín |last2=García |first2=Diego |last3=Bayona |first3=Germán |last4=Blanco |first4=Yolima |year=2009 |title=Timing of oil generation in the Eastern flank of the Eastern Cordillera of Colombia based on kinematic models; implications in the Llanos Foothills and Foreland charge |publisher=Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP) |pages=1–8}}
• {{cite report |last1=Parra |first1=Mauricio |last2=Mora |first2=Andrés |last3=Sobel |first3=Edward R. |last4=Strecker |first4=Manfred R. |author5-link=Carlos Jaramillo (geologist) |last5=Jaramillo |first5=Carlos |last6=O'Sullivan |first6=Paul B. |last7=González |first7=Román |year=2008 |title=Cenozoic Orogenic Growth of the North Andes: Shortening and Exhumation Histories of the Eastern Cordillera of Colombia |publisher=AAPG Annual Convention, San Antonio, Texas |pages=1–27}}
• {{cite journal |last1=Sarmiento Rojas |first1=L.F. |last2=Van Wees |first2=J.D. |last3=Cloetingh |first3=S. |year=2006 |title=Mesozoic transtensional basin history of the Eastern Cordillera, Colombian Andes: Inferences from tectonic models |url=|doi=10.1016/j.jsames.2006.07.003|journal=Journal of South American Earth Sciences |volume=21 |issue=4 |publisher=Elsevier |pages=383–411|bibcode=2006JSAES..21..383S }}
• {{cite report |year=2006 |title=Cartografía geológica cuenca Cordillera Oriental - Sector Soapaga |url=http://www.anh.gov.co/Informacion-Geologica-y-Geofisica/Tesis/CARTOGRAFIA%20GEOLOGICA%20SOAPAGA-C.ORIENTAL%202005.pdf |publisher=ANH |pages=1–239 |access-date=2017-05-05 |archive-date=2017-08-16 |archive-url=https://web.archive.org/web/20170816105201/http://www.anh.gov.co/Informacion-Geologica-y-Geofisica/Tesis/CARTOGRAFIA%20GEOLOGICA%20SOAPAGA-C.ORIENTAL%202005.pdf |url-status=dead }}
• {{cite report |last1=Rodríguez Parra |first1=Antonio José |last2=Solano Silva |first2=Orlando |year=2000 |title=Mapa Geológico del Departamento de Boyacá - 1:250,000 - Memoria explicativa |url=http://recordcenter.sgc.gov.co/B4/13010040020044/documento/pdf/0101200441101000.pdf |publisher=INGEOMINAS |pages=1–120 |access-date=2019-03-10}}

• {{cite report |last1=Acosta Garay |first1=Jorge |last2=Ulloa Melo |first2=Carlos E. |year=2001 |title=Geología de la Plancha 208 Villeta - 1:100,000 |url=http://aplicaciones1.sgc.gov.co/Bodega/i_vector/130/10/0100/20136/documento/pdf/0101201361101000.pdf |publisher=INGEOMINAS |pages=1–84 |access-date=2017-04-04 |archive-date=2017-03-24 |archive-url=https://web.archive.org/web/20170324084417/http://aplicaciones1.sgc.gov.co/Bodega/i_vector/130/10/0100/20136/documento/pdf/0101201361101000.pdf |url-status=dead }}
• {{cite report |last1=Reyes |first1=Germán |last2=Montoya |first2=Diana |last3=Terraza |first3=Roberto |last4=Fuquen |first4=Jaime |last5=Mayorga |first5=Marcela |last6=Gaona |first6=Tatiana |author7-link=Fernando Etayo |last7=Etayo |first7=Fernando |year=2008 |title=Geología del cinturón esmeraldífero oriental Planchas 210, 228, 229 |publisher=INGEOMINAS |pages=1−126}}
• {{cite report |last1=Acosta Garay |first1=Jorge |last2=Ulloa Melo |first2=Carlos E. |year=2001 |title=Geología de la Plancha 227 - La Mesa - 1:100,000 |publisher=INGEOMINAS |pages=1–80}}
• {{cite report |last1=Terraza |first1=Roberto |last2=Montoya |first2=Diana |last3=Reyes |first3=Germán |last4=Moreno |first4=Giovanni |last5=Fúquen |first5=Jaime |last6=Torres Jaimes |first6=Eliana |last7=López Cardona |first7=Myriam |last8=Nivia Guevara |first8=Álvaro |author9-link=Fernando Etayo |last9=Etayo Serna |first9=Fernando |year=2013 |title=Geología de la Plancha 229 - Gachalá - 1:100,000 |url=http://recordcenter.sgc.gov.co/B14/23008010024664/Documento/pdf/2105246641101000.pdf |publisher=Servicio Geológico Colombiano |pages=1–296 |access-date=2018-06-01}}
• {{cite report |last1=Patiño |first1=Alejandro |last2=Fuquen |first2=Jaime |last3=Ramos |first3=Julián |last4=Pedraza |first4=Andrea |last5=Ceballos |first5=Leonardo |last6=Pinzón |first6=Lyda |last7=Jerónimo |first7=Yadira |last8=Álvarez |first8=Leidy |last9=Torres |first9=Andrea |year=2011 |title=Cartografía geológica de la Plancha 247 - Cáqueza - 1:100,000 |url=http://aplicaciones1.sgc.gov.co/Bodega/i_vector/230/08/0100/24462/documento/pdf/2105244621101000.pdf |publisher=INGEOMINAS |pages=1–100 |access-date=2017-08-04 |archive-date=2017-08-15 |archive-url=https://web.archive.org/web/20170815175823/http://aplicaciones1.sgc.gov.co/Bodega/i_vector/230/08/0100/24462/documento/pdf/2105244621101000.pdf |url-status=dead }}

• {{cite map |last=Daconte B. |first=Rommel |last2=Salinas E |first2=Rosalba |year=1982 |title=Plancha 122 - Río Cobugón - 1:100,000 |url=http://recordcenter.sgc.gov.co/B4/13010010020449/mapa/Pdf/0101204491300001.pdf |publisher=INGEOMINAS |pages=1 |access-date=2018-06-01}}
• {{cite map |last=Vargas |first=Rodrigo |last2=Arias |first2=Alfonso |last3=Jaramillo |first3=Luis |last4=Tellez |first4=Noel |year=1984 |title=Plancha 136 - Málaga - 1:100,000 |url=https://drive.google.com/open?id=0BwFQPMJEi17QcTNmbVRfUGlrSGc |publisher=INGEOMINAS |pages=1 |access-date=2017-06-06 |url-access=subscription}}
• {{cite map |last=Ulloa |first=Carlos E. |last2=Rodríguez |first2=Erasmo |last3=Escovar |first3=Ricardo |year=1998 |title=Plancha 192 - Laguna de Tota - 1:100,000 |url=https://drive.google.com/open?id=0BwFQPMJEi17QTmFMZTdRVDdDWWc |publisher=INGEOMINAS |pages=1 |access-date=2017-06-06 |url-access=subscription}}
• {{cite map |last=Terraza |first=Roberto |last2=Moreno |first2=Giovanni |last3=Buitrago |first3=José A. |last4=Pérez |first4=Adrián |last5=Montoya |first5=Diana María |year=2010 |title=Plancha 210 - Guateque - 1:100,000 |url=https://drive.google.com/open?id=0BwFQPMJEi17QS1VHUTg1MEpNcHM |publisher=INGEOMINAS |pages=1 |access-date=2017-06-06}}
• {{cite map |last=Buitrago |first=José Alberto |last2=Terraza M. |first2=Roberto |last3=Etayo |first3=Fernando |year=1998 |title=Plancha 228 - Santafé de Bogotá Noreste - 1:100,000 |url=https://drive.google.com/open?id=0BwFQPMJEi17QTlNraVVZZ2ZCY0E |publisher=INGEOMINAS |pages=1 |access-date=2017-06-06 |url-access=subscription}}
• {{cite map |last=Unión Temporal |first=G&H |year=2015 |title=Plancha 284 - Santana - 1:100,000 |url=http://recordcenter.sgc.gov.co/B15/23008010024822/Mapa/Pdf/2105248221300007.pdf |publisher=Servicio Geológico Colombiano |pages=1 |access-date=2018-06-01}}

• {{cite report |last1=Fuquen M. |first1=Jaime Alberto |last2=Osorno M |first2=José Fernando |year=2002 |title=Geología de la Plancha 303 - Colombia - 1:100,000 |publisher=INGEOMINAS |pages=1–88}}
• {{cite report |last=Rodríguez |first=Gabriel |display-authors=etal |year=2002 |title=Geología de las Planchas 367 Gigante, 368 San Vicente del Caguán, 389 Timaná, 390 Puerto Rico, 391 Lusitania (parte noroccidental) y 414 El Doncello |publisher=INGEOMINAS |pages=1–164}}

• {{cite map |last=Acosta |first=Jorge |last2=Calcedo |first2=Juan Carlos |last3=Ulloa |first3=Carlos |year=1999 |title=Plancha 265 - Icononzo - 1:100,000 |url=https://drive.google.com/open?id=0BwFQPMJEi17QUVIxRzhsZ2RyTk0 |publisher=INGEOMINAS |pages=1 |access-date=2017-06-06 |url-access=subscription}}
• {{cite map |last=Carvajal |first=Cesar |last2=Fuquen |first2=Jaime |last3=Gómez |first3=Luis |year=1993 |title=Plancha 282 - Chaparral - 1:100,000 |url=https://drive.google.com/open?id=0BwFQPMJEi17QdUdpMXJRelFRSzg |publisher=INGEOMINAS |pages=1 |access-date=2017-06-06}}
• {{cite map |last=Cossio |first=Ubaldo |last2=Rodríguez |first2=Gabriel |last3=Rodríguez |first3=Miguel |year=1995 |title=Plancha 283 - Purificación - 1:100,000 |url=https://drive.google.com/open?id=0BwFQPMJEi17QWktmN3pteWF2ZjQ |publisher=INGEOMINAS |pages=1 |access-date=2017-06-06 |url-access=subscription}}
• {{cite map |last=Fuquen |first=Jaime |last2=Rodríguez |first2=Gabriel |last3=Cossio |first3=Ubaldo |last4=Núñez |first4=Alberto |year=1993 |title=Plancha 302 - Aipe - 1:100,000 |url=https://drive.google.com/open?id=0BwFQPMJEi17QRjduaGpKbHAxSTA |publisher=INGEOMINAS |pages=1 |access-date=2017-06-06 |url-access=subscription}}
• {{cite map |last=Acosta |first=Jorge |last2=Caro |first2=Pablo |last3=Fuquen |first3=Jaime |last4=Osorno |first4=José |year=2002 |title=Plancha 303 - Colombia - 1:100,000 |publisher=INGEOMINAS |pages=1}}
• {{cite map |last=Ferreira |first=Paulina |last2=Núñez |first2=Alberto |last3=Rodríguez |first3=Miguel |year=1998 |title=Plancha 323 - Neiva - 1:100,000 |url=https://drive.google.com/open?id=0BwFQPMJEi17QN1QwOFdWYkdNSXc |publisher=INGEOMINAS |pages=1 |access-date=2017-06-06 |url-access=subscription}}
• {{cite map |last=Marquínez |first=Germán |last2=Morales |first2=C. |last3=Núñez |first3=Alberto |year=1999 |title=Plancha 344 - Tesalia - 1:100,000 |url=https://drive.google.com/open?id=0BwFQPMJEi17QcU5Ecy1OS213Tm8 |publisher=INGEOMINAS |pages=1 |access-date=2017-06-06}}
• {{cite map |last=Velandia |first=F. |last2=Morales |first2=C.J. |last3=Caicedo |first3=J.C. |last4=Núñez |first4=Alberto |year=1999 |title=Plancha 345 - Campoalegre - 1:100,000 |url=https://drive.google.com/open?id=0BwFQPMJEi17Qb2FOUnpWYi1WZG8 |publisher=INGEOMINAS |pages=1 |access-date=2017-06-06 |url-access=subscription}}
• {{cite map |last=Unión Temporal |first=G&H |year=2015 |title=Plancha 347 - Espelda Nuevo - 1:100,000 |url=http://recordcenter.sgc.gov.co/B15/23008010024818/Mapa/Pdf/2105248181300002.pdf |publisher=Servicio Geológico Colombiano |pages=1 |access-date=2018-06-01}}
• {{cite map |last=Rodríguez |first=Gabriel |last2=Ferreira |first2=Paulina |last3=Velandia |first3=Francisco |last4=Núñez |first4=Alberto |year=1998 |title=Plancha 366 - Garzón - 1:100,000 |url=https://drive.google.com/open?id=0BwFQPMJEi17QNXI4TXFkODRMUE0 |publisher=INGEOMINAS |pages=1 |access-date=2017-06-06 |url-access=subscription}}
• {{cite map |last=Rodríguez |first=Gabriel |last2=Zapata |first2=Gilberto |last3=Velázquez |first3=M. |year=2003 |title=Plancha 367 - Gigante - 1:100,000 |url=https://drive.google.com/open?id=0BwFQPMJEi17Qc0lNRi1OUmxRZ0E |publisher=INGEOMINAS |pages=1 |access-date=2017-06-06 |url-access=subscription}}

• {{cite report |last=Núñez Tello |first=Alberto |year=2003 |title=Cartografía geológica de las zonas Andina Sur y Garzón-Quetame (Colombia) - Memoria explicativa de las planchas 411 La Cruz, 412 San Juan de Villalobos, 430 Mocoa, 431 Piamonte, 448 Monopamba, 449 Orito y 465 Churuyaco |publisher=INGEOMINAS |pages=1–298}}

• {{cite map |last=Rodríguez |first=Gabriel |last2=Zapata |first2=Gilberto |last3=Velázquez |first3=M. |year=2003 |title=Plancha 368 - San Vicente del Caguán - 1:100,000 |url=https://drive.google.com/open?id=0BwFQPMJEi17QSWs2TTJldVkyZUk |publisher=INGEOMINAS |pages=1 |access-date=2017-06-06 |url-access=subscription}}
• {{cite map |last=Unión Temporal |first=G&H |year=2015 |title=Plancha 369 - Los Pozos - 1:100,000 |url=http://recordcenter.sgc.gov.co/B14/23008010024807/Mapa/Pdf/2105248071300006.pdf |publisher=Servicio Geológico Colombiano |pages=1 |access-date=2018-06-01}}
• {{cite map |last=Cárdenas |first=Jorge |last2=Fuquen |first2=Jaime |last3=Núñez |first3=Alberto |year=2002 |title=Plancha 388 - Pitalito - 1:100,000 |url=https://drive.google.com/open?id=0BwFQPMJEi17QQmRfRU0tSmpITVk |publisher=INGEOMINAS |pages=1 |access-date=2017-06-06}}
• {{cite map |last=Rodríguez |first=Gabriel |last2=Zapata |first2=Gilberto |last3=Velázquez |first3=M. |year=2003 |title=Plancha 389 - Timaná - 1:100,000 |url=https://drive.google.com/open?id=0BwFQPMJEi17QMGJuMktSbk5jMnM |publisher=INGEOMINAS |pages=1 |access-date=2017-06-06 |url-access=subscription}}
• {{cite map |last=Rodríguez |first=Gabriel |last2=Zapata |first2=Gilberto |last3=Velázquez |first3=M. |year=2003 |title=Plancha 391 - Lusitania - 1:100,000 |url=https://drive.google.com/open?id=0BwFQPMJEi17QN3VjOFppbk52bnc |publisher=INGEOMINAS |pages=1 |access-date=2017-06-06 |url-access=subscription}}
• {{cite map |last=Núñez |first=Alberto |last2=Gómez |first2=Jorge |year=2002 |title=Plancha 412 - San Juan de Villalobos - 1:100,000 |url=https://drive.google.com/open?id=0BwFQPMJEi17QRjlUTXEwYkU2bGc |publisher=INGEOMINAS |pages=1 |access-date=2017-06-06 |url-access=subscription}}
• {{cite map |last=Rodríguez |first=Gabriel |last2=Zapata |first2=Gilberto |last3=Velázquez |first3=M. |year=2003 |title=Plancha 414 - El Doncello - 1:100,000 |url=https://drive.google.com/open?id=0BwFQPMJEi17QTHVUN0lZUUtuVHc |publisher=INGEOMINAS |pages=1 |access-date=2017-06-06}}
• {{cite map |last=Unión Temporal |first=G&H |year=2015 |title=Plancha 415 - Ríonegro - 1:100,000 |url=http://recordcenter.sgc.gov.co/B14/23008010024801/Mapa/Pdf/2105248011300007.pdf |publisher=Servicio Geológico Colombiano |pages=1 |access-date=2018-06-01 |url-access=subscription}}
• {{cite map |last=Núñez |first=Alberto |last2=Gómez |first2=Jorge |year=2002 |title=Plancha 430 - Mocoa - 1:100,000 |url=https://drive.google.com/open?id=0BwFQPMJEi17QSzVkay1pQzB4Rlk |publisher=INGEOMINAS |pages=1 |access-date=2017-06-06}}
• {{cite map |last=Núñez |first=Alberto |last2=Gómez |first2=Jorge |year=2002 |title=Plancha 431 - Piamonte - 1:100,000 |url=https://drive.google.com/open?id=0BwFQPMJEi17QeXdTSmdjb0NVbUk |publisher=INGEOMINAS |pages=1 |access-date=2017-06-06}}
• {{cite map |last=Núñez |first=Alberto |last2=Gómez |first2=Jorge |year=2002 |title=Plancha 448 - Monopamba - 1:100,000 |url=https://drive.google.com/open?id=0BwFQPMJEi17QSkotbFpubGlNUmc |publisher=INGEOMINAS |pages=1 |access-date=2017-06-06}}
• {{cite map |last=Núñez |first=Alberto |last2=Gómez |first2=Jorge |year=2002 |title=Plancha 449 - Orito - 1:100,000 |url=https://drive.google.com/open?id=0BwFQPMJEi17QRVp3Y2FjTU1vMFU |publisher=INGEOMINAS |pages=1 |access-date=2017-06-06}}

¤

¤

{{div col|colwidth=29em}}

• Geology of the Eastern Hills
• Geology of the Ocetá Páramo
• Geology of the Altiplano Cundiboyacense
• Bogotá, Cerrejón, Floresta, Paja Formations

{{div col end}}

{{reflist|group=note}}

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• {{cite journal |last=Wheeler |first=Brandon |year=2010 |title=Community ecology of the Middle Miocene primates of La Venta, Colombia: the relationship between ecological diversity, divergence time, and phylogenetic richness |journal=Primates |volume=51 |issue=2 |pages=131–138|doi=10.1007/s10329-009-0181-y |pmid=20037832 |s2cid=2232287 |url=https://kar.kent.ac.uk/54729/1/Wheeler%202010%20La%20Venta.pdf }}

• {{cite map |last=Barrero L. |first=Darío |last2=Vesga O |first2=Carlos J. |year=2009 |title=Plancha 188 - La Dorada - 1:100,000 |url=https://drive.google.com/open?id=0BwFQPMJEi17QZHIzODhsdnQ1QWc |publisher=INGEOMINAS |pages=1 |access-date=2017-06-06}}
• {{cite map |last=Barrero |first=Darío |last2=Vesga |first2=Carlos J. |year=2010 |title=Plancha 207 - Honda - 1:100,000 |url=https://drive.google.com/open?id=0BwFQPMJEi17QSEtOd0RNNmRLZWc |publisher=INGEOMINAS |pages=1 |access-date=2017-06-06}}
• {{cite map |last=Barrero |first=Darío |last2=Vesga |first2=Carlos J. |year=2010 |title=Plancha 226 - Líbano - 1:100,000 |url=https://drive.google.com/open?id=0BwFQPMJEi17QLU9hOVFsMzNfYnc |publisher=INGEOMINAS |pages=1 |access-date=2017-06-06}}
• {{cite map |last=Acosta |first=Jorge E. |last2=Guatame |first2=Rafael |last3=Torres |first3=Oscar |last4=Solano |first4=Frank |year=1999 |title=Plancha 245 - Girardot - 1:100,000 |url=https://drive.google.com/open?id=0BwFQPMJEi17QUmhEQTdMNmcxT28 |publisher=INGEOMINAS |pages=1 |access-date=2017-06-06}}
• {{cite map |last=Nuñez |first=Alberto |last2=Mosquera |first2=Dario |last3=Vesga |first3=Carlos J. |year=2009 |title=Plancha 263 - Ortega - 1:100,000 |url=https://drive.google.com/open?id=0BwFQPMJEi17QTjJXNjFDTVJQamM |publisher=INGEOMINAS |pages=1 |access-date=2017-06-06}}
• {{cite map |last=Calcedo |first=Juan Carlos |last2=Terraza |first2=Roberto |year=2000 |title=Plancha 264 - Espinal - 1:100,000 |url=https://drive.google.com/open?id=0BwFQPMJEi17QWXFlMThKQTBCRjA |publisher=INGEOMINAS |pages=1 |access-date=2017-06-06}}
• {{cite map |last=Carvajal |first=Cesar |last2=Fuquen |first2=Jaime |last3=Gómez |first3=Luis |year=1993 |title=Plancha 282 - Chaparral - 1:100,000 |url=https://drive.google.com/open?id=0BwFQPMJEi17QdUdpMXJRelFRSzg |publisher=INGEOMINAS |pages=1 |access-date=2017-06-06}}
• {{cite map |last=Cossio |first=Ubaldo |last2=Rodríguez |first2=Gabriel |last3=Rodríguez |first3=Miguel |year=1995 |title=Plancha 283 - Purificación - 1:100,000 |url=https://drive.google.com/open?id=0BwFQPMJEi17QWktmN3pteWF2ZjQ |publisher=INGEOMINAS |pages=1 |access-date=2017-06-06}}
• {{cite map |last=Fuquen |first=Jaime |last2=Rodríguez |first2=Gabriel |last3=Cossio |first3=Ubaldo |last4=Núñez |first4=Alberto |year=1993 |title=Plancha 302 - Aipe - 1:100,000 |url=https://drive.google.com/open?id=0BwFQPMJEi17QRjduaGpKbHAxSTA |publisher=INGEOMINAS |pages=1 |access-date=2017-06-06}}
• {{cite map |last=Acosta |first=Jorge |last2=Caro |first2=Pablo |last3=Fuquen |first3=Jaime |last4=Osorno |first4=José |year=2002 |title=Plancha 303 - Colombia - 1:100,000 |publisher=INGEOMINAS |pages=1}}
• {{cite map |last=Ferreira |first=Paulina |last2=Núñez |first2=Alberto |last3=Rodríguez |first3=Miguel |year=1998 |title=Plancha 323 - Neiva - 1:100,000 |url=https://drive.google.com/open?id=0BwFQPMJEi17QN1QwOFdWYkdNSXc |publisher=INGEOMINAS |pages=1 |access-date=2017-06-06}}
• {{cite map |last=Marquínez |first=Germán |last2=Morales |first2=C. |last3=Núñez |first3=Alberto |year=1999 |title=Plancha 344 - Tesalia - 1:100,000 |url=https://drive.google.com/open?id=0BwFQPMJEi17QcU5Ecy1OS213Tm8 |publisher=INGEOMINAS |pages=1 |access-date=2017-06-06}}
• {{cite map |last=Velandia |first=F. |last2=Morales |first2=C.J. |last3=Caicedo |first3=J.C. |last4=Núñez |first4=Alberto |year=1999 |title=Plancha 345 - Campoalegre - 1:100,000 |url=https://drive.google.com/open?id=0BwFQPMJEi17Qb2FOUnpWYi1WZG8 |publisher=INGEOMINAS |pages=1 |access-date=2017-06-06}}
• {{cite map |last=Rodríguez |first=Gabriel |last2=Ferreira |first2=Paulina |last3=Velandia |first3=Francisco |last4=Núñez |first4=Alberto |year=1998 |title=Plancha 366 - Garzón - 1:100,000 |url=https://drive.google.com/open?id=0BwFQPMJEi17QNXI4TXFkODRMUE0 |publisher=INGEOMINAS |pages=1 |access-date=2017-06-06}}
• {{citation |last1=Rodríguez |first1=Gabriel |last2=Zapata |first2=Gilberto |last3=Velázquez |first3=M. |year=2003 |title=Plancha 367 - Gigante - 1:100,000 |url=https://drive.google.com/open?id=0BwFQPMJEi17Qc0lNRi1OUmxRZ0E |publisher=INGEOMINAS |pages=1 |access-date=2017-06-06}}

{{commons category|Honda Group, Colombia}}

• {{in lang|es}} [http://lapaleontologiaencolombia.blogspot.com.co/2013/03/faunas-del-cenozoico-de-colombia-iii.html Faunas del Cenozoico de Colombia]
• {{in lang|es}} [http://lapaleontologiaencolombia.blogspot.com.co/2013/03/fauna-de-la-venta-aspectos-geologicos_25.html Fauna de La Venta - aspectos geológicos]

{{SALMA|state=collapsed}}

{{Paleontology in Colombia|state=expanded}}

Category:Neogene Colombia

Category:Burdigalian

Category:Langhian

Category:Serravallian

Category:Miocene fossil record

Category:Miocene volcanism

Category:Conglomerate groups

Category:Sandstone groups

Category:Shale groups

Category:Siltstone groups

Category:Tuff groups

Category:Fluvial deposits

Formations

Formations

Formations

Geology

Category:Claystone groups