No. Registros Solicitud 1 5614 colombia
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IS - ISSN: 0883-9247 AN - ACCESSION NUMBER: 1960-003475 UD - UPDATE CODE: 1960 Registro 2918 de 5614 - GeoRef Disc 1: 1785-1974 TI - TITLE: Estudio de unos yacimientos de carbon en el municipio de Cucuta. AU - AUTHORS: Obando-Reyes-Raul SO - SOURCE: 78-79; Pages 3-25. 1960. NT - NOTES: Colombia, Div. Nac. Minas, B. Minas ano 7 PY - PUBLICATION YEAR: 1960 LA - LANGUAGE: Spanish AB - ABSTRACT: Coal beds at various localities in the vicinity of Cucuta, Colombia, all occur in the Los Cuervos formation, to which an upper Cretaceous age has been assigned but which recent studies show to be lower Tertiary (lower middle Paleocene to lowermost Eocene). The coals are suitable for the production of coke. The section at the producing mine in the area is described, and data on mining methods and reserves are reported. DE - DESCRIPTORS: coal-; Colombia-; Cucuta-area; economic-geology; organic-residues; sedimentary-rocks; South-America CC - CATEGORY CODES: 29-Economic-geology-of-energy-sources DT - DOCUMENT TYPE: Serial BL - BIB LEVEL: Analytic IL - ILLUSTRATION: illus. incl. sketch map. RF - REFERENCE SOURCE: GeoRef, Copyright 2000, American Geological Institute. Reference includes data from Bibliography and Index of Geology Exclusive of North America, Geological Society of America, Boulder, CO, United States AN - ACCESSION NUMBER: 1960-003571 UD - UPDATE CODE: 1960 Registro 2919 de 5614 - GeoRef Disc 1: 1785-1974 BK - BOOK TITLE: Bibliografia de los informes del Instituto Geologico Nacional. BA - BOOK AUTHORS: Venegas-Leyva-Alicia SO - SOURCE: Colombia, Serv. Geol. Nac., Compilacion Estud. Geol. Ofic. Colombia. 9; 1960. PB - PUBLISHER: Pages: 587. 1960. PY - PUBLICATION YEAR: 1960 LA - LANGUAGE: Spanish AB - ABSTRACT: A bibliography of the geology of Colombia, with author and subject lists and an appendix citing references to material in the Library of the Geological Survey of Colombia and listing geologic maps of Colombia. DE - DESCRIPTORS: bibliography-; Colombia-; geology-; South-America CC - CATEGORY CODES: 15-Miscellaneous DT - DOCUMENT TYPE: Serial BL - BIB LEVEL: Monograph RF - REFERENCE SOURCE: GeoRef, Copyright 2000, American Geological Institute. Reference includes data from Bibliography and Index of Geology Exclusive of North America, Geological Society of America, Boulder, CO, United States AN - ACCESSION NUMBER: 1960-005226 UD - UPDATE CODE: 1960 Registro 2920 de 5614 - GeoRef Disc 1: 1785-1974 TI - TITLE: Estudio de unos yacimientos de bentonita en los municipios de Mariquita, Fresno y Falan (Tolima). AU - AUTHORS: Villegas-Varon-Mario SO - SOURCE: 80-81; Pages 3-10. 1960. NT - NOTES: Colombia, Div. Nac. Minas, B. Minas ano 7 PY - PUBLICATION YEAR: 1960 LA - LANGUAGE: Spanish AB - ABSTRACT: Analysis of clays from the Honda formation (Tertiary) at different localities in Tolima, Colombia, showed some samples to be montmorillonitic bentonite, others to be mixtures of halloysitic and kaolinitic clays. Field observations indicate that commercially significant amounts of bentonite are present, but further investigations are necessary before exploitation is warranted. DE - DESCRIPTORS: bentonite-; clastic-rocks; Colombia-; economic-geology; sedimentary-rocks; South-America; Tolima- CC - CATEGORY CODES: 26-Economic-geology,-general DT - DOCUMENT TYPE: Serial BL - BIB LEVEL: Analytic IL - ILLUSTRATION: illus. incl. sketch map. RF - REFERENCE SOURCE: GeoRef, Copyright 2000, American Geological Institute. Reference includes data from Bibliography and Index of Geology Exclusive of North America, Geological Society of America, Boulder, CO, United States AN - ACCESSION NUMBER: 1960-005248 UD - UPDATE CODE: 1960 Registro 2921 de 5614 - GeoRef Disc 1: 1785-1974 BK - BOOK TITLE: Recursos minerales de Colombia. BA - BOOK AUTHORS: Wokittel-Roberto SO - SOURCE: Colombia, Serv. Geol. Nac., Compilacion Estud. Geol. Ofic. Colombia. 10; 1960. PB - PUBLISHER: Pages: 393. 1960. PY - PUBLICATION YEAR: 1960 LA - LANGUAGE: Spanish AB - ABSTRACT: A review of the mineral resources of Colombia; includes brief summaries of the geology and the general character of mineralization. DE - DESCRIPTORS: Colombia-; economic-geology; geologic-maps; maps-; mineral-resources; South-America CC - CATEGORY CODES: 26-Economic-geology,-general DT - DOCUMENT TYPE: Serial BL - BIB LEVEL: Monograph IL - ILLUSTRATION: maps incl. colored geol. map. RF - REFERENCE SOURCE: GeoRef, Copyright 2000, American Geological Institute. Reference includes data from Bibliography and Index of Geology Exclusive of North America, Geological Society of America, Boulder, CO, United States AN - ACCESSION NUMBER: 1960-005507 UD - UPDATE CODE: 1960 Registro 2922 de 5614 - GeoRef Disc 1: 1785-1974 TI - TITLE: Some problems of Caribbean submarine geology. AU - AUTHORS: Heezen-Bruce-C SO - SOURCE: Pages 12-16. 1960. NT - NOTES: Caribbean Geol. Conf., 2d, Mayagueez, Puerto Rico, Tr. PY - PUBLICATION YEAR: 1960 LA - LANGUAGE: English AB - ABSTRACT: Data supplied by deep-sea geologic mapping and further study of deposition by turbidity currents will undoubtedly supplement present information obtained by seismic refraction surveys and may lead to solution of the problem as to whether processes of continental growth or continental foundering are active in the Caribbean basin. The section between western Cuba and the continental slope off Colombia is essentially of continental thickness, but one of the elements of the section, the Cayman trench, is a typical ocean basin-type structure. DE - DESCRIPTORS: Caribbean-region; geology-; marine-geology; problems- CC - CATEGORY CODES: 07-Oceanography DT - DOCUMENT TYPE: Serial BL - BIB LEVEL: Analytic IL - ILLUSTRATION: illus. incl. sketch maps. RF - REFERENCE SOURCE: GeoRef, Copyright 2000, American Geological Institute. Reference includes data from Bibliography and Index of Geology Exclusive of North America, Geological Society of America, Boulder, CO, United States AN - ACCESSION NUMBER: 1961-002383 UD - UPDATE CODE: 1961 Registro 2923 de 5614 - GeoRef Disc 1: 1785-1974 TI - TITLE: Directrices tectonicas en la Sierra de Perija y partes adyacentes de Venezuela y Colombia. AU - AUTHORS: Miller-John-B SO - SOURCE: Boletin de Geologia Publicacion Especial. 3; 2, Pages 685-718. 1960. PB - PUBLISHER: [Venezuela Direccion Geologia]. Caracas, Venezuela. 1960. CP - COUNTRY OF PUBLICATION: Venezuela PY - PUBLICATION YEAR: 1960 LA - LANGUAGE: Spanish AB - ABSTRACT: The compression folds and faults in the Perija sierra, Venezuela, are predominantly northeasttrending; these are disturbed by more or less local faults and dislocations. A system of transverse faults in the direction of the Arena Blanca cuts the southern and south-central part of the range, and the transverse system of the east-west Oca fault cuts and bounds the range on the north. After a discussion of some of the details of the fault systems, the geologic history of the range is outlined. DE - DESCRIPTORS: faults-; folds-; Perija-range; South-America; tectonics-; Venezuela- CC - CATEGORY CODES: 16-Structural-geology DT - DOCUMENT TYPE: Serial BL - BIB LEVEL: Analytic IL - ILLUSTRATION: illus. incl. maps. RF - REFERENCE SOURCE: GeoRef, Copyright 2000, American Geological Institute. Reference includes data from Bibliography and Index of Geology Exclusive of North America, Geological Society of America, Boulder, CO, United States IS - ISSN: 0505-1169 CO - CODEN: BGPEA6 AN - ACCESSION NUMBER: 1961-003641 UD - UPDATE CODE: 1961 Registro 2924 de 5614 - GeoRef Disc 1: 1785-1974 TI - TITLE: Los minerales radioactivos en Colombia. AU - AUTHORS: Ramirez-Jesus-Emilio SO - SOURCE: Pages 173-176. 1960. NT - NOTES: Caribbean Geol. Conf., 2d, Mayagueez, Puerto Rico, Tr. PY - PUBLICATION YEAR: 1960 LA - LANGUAGE: Spanish AB - ABSTRACT: Briefly characterizes several areas in Colombia considered to offer good possibilities for discovery of uranium mineralization and notes localities in which occurrences of radioactive minerals have been reported. DE - DESCRIPTORS: actinides-; Colombia-; economic-geology; metals-; South-America; uranium- CC - CATEGORY CODES: 27-Economic-geology-of-ore-deposits DT - DOCUMENT TYPE: Serial BL - BIB LEVEL: Analytic RF - REFERENCE SOURCE: GeoRef, Copyright 2000, American Geological Institute. Reference includes data from Bibliography and Index of Geology Exclusive of North America, Geological Society of America, Boulder, CO, United States AN - ACCESSION NUMBER: 1961-004407 UD - UPDATE CODE: 1961 Registro 2925 de 5614 - GeoRef Disc 1: 1785-1974 TI - TITLE: Geologia de la parte sureste de la peninsula de La Guajira (republica de Colombia). AU - AUTHORS: Renz-O SO - SOURCE: Boletin de Geologia Publicacion Especial. 3; 1, Pages 317-347. 1960. PB - PUBLISHER: [Venezuela Direccion Geologia]. Caracas, Venezuela. 1960. CP - COUNTRY OF PUBLICATION: Venezuela PY - PUBLICATION YEAR: 1960 LA - LANGUAGE: Spanish AB - ABSTRACT: The outstanding structural features of the Guajira peninsula (Colombia) are the southern Guajira platform in the south, the Guajira trough and the central massif in the center, and the Caribbean geosyncline in the northwest. An Oligo-Miocene basin occurs in the southeast (Cosineta basin). The Guajira platform is underlain by the Triassic Cojoro group, comprising continental, marine, and lagoonal to deltaic sediments and a sequence of completely marine Cretaceous formations. The trough is filled with Jurassic deposits overlain by a Cretaceous sequence similar to that of the platform. The geosynclinal sediments are mainly slightly metamorphosed black silts intruded by granodiorite and granite batholiths and basic and ultrabasic dikes. The Paleocene Guasare formation outcrops in the southeast and upper Eocene sediments occur in the northern part of the peninsula. DE - DESCRIPTORS: Cenozoic-; Colombia-; Cretaceous-; geologic-maps; Guajira-Peninsula; historical-geology; Jurassic-; maps-; Mesozoic-; South-America; southeast-; Tertiary-; Triassic- CC - CATEGORY CODES: 13-Areal-geology DT - DOCUMENT TYPE: Serial BL - BIB LEVEL: Analytic IL - ILLUSTRATION: illus. incl. geol. maps. RF - REFERENCE SOURCE: GeoRef, Copyright 2000, American Geological Institute. Reference includes data from Bibliography and Index of Geology Exclusive of North America, Geological Society of America, Boulder, CO, United States IS - ISSN: 0505-1169 CO - CODEN: BGPEA6 AN - ACCESSION NUMBER: 1961-004495 UD - UPDATE CODE: 1961 Registro 2926 de 5614 - GeoRef Disc 1: 1785-1974 BK - BOOK TITLE: Lower Cretaceous ammonites from Colombia, South America. BA - BOOK AUTHORS: Haas-Otto SO - SOURCE: American Museum Novitates. 2005; 1960. PB - PUBLISHER: American Museum of Natural History. New York, NY, United States. Pages: 62. 1960. CP - COUNTRY OF PUBLICATION: United-States PY - PUBLICATION YEAR: 1960 LA - LANGUAGE: English AB - ABSTRACT: Describes a rich collection of pre-Barremian ammonites from lower Cretaceous localities of the Cordillera Oriental. The crushed and flattened condition of many specimens made specific identification difficult. Many new species are represented in the material systematically described. DE - DESCRIPTORS: Ammonites-; Ammonoidea-; Andes-; Cephalopoda-; Colombia-; Cretaceous-; Eastern-Cordillera; Invertebrata-; Mesozoic-; Mollusca-; paleontology-; South-America; Tetrabranchiata- CC - CATEGORY CODES: 10-Invertebrate-paleontology DT - DOCUMENT TYPE: Serial BL - BIB LEVEL: Monograph IL - ILLUSTRATION: illus. RF - REFERENCE SOURCE: GeoRef, Copyright 2000, American Geological Institute. Reference includes data from Bibliography and Index of Geology Exclusive of North America, Geological Society of America, Boulder, CO, United States IS - ISSN: 0003-0082 CO - CODEN: AMUNAL AN - ACCESSION NUMBER: 1962-002143 UD - UPDATE CODE: 1962 Registro 2927 de 5614 - GeoRef Disc 1: 1785-1974 TI - TITLE: El cuaternario marino de la isla de Tierrabomba (Bolvar). AU - AUTHORS: Porta-Jaime-de; Sole-de-Porta-N SO - SOURCE: Boletin de Geologia (Bucaramanga). 4; Pages 19-44. 1960. PB - PUBLISHER: Universidad Industrial de Santander. Bucaramanga, Colombia. 1960. CP - COUNTRY OF PUBLICATION: Colombia PY - PUBLICATION YEAR: 1960 LA - LANGUAGE: Spanish LS - LANGUAGE OF SUMMARY: English; French AB - ABSTRACT: Two marine Pleistocene terraces at elevations of 20 and three meters on Tierrabomba island near Cartagena (Colombia) are correlated with the 21 meter Penholoway and Silver Bluff terraces on the north Atlantic shoreline. Biostatistical and taxonomic studies of algae, foraminifera, Anthozoa, Amphineura, scaphopods, pelecypods, gastropods, arthropods, and ostracods were made in three localities on the island. Two subfacies in a general bay environment are distinguished. One bay subfacies is slightly influenced by communication with the open sea, and the other bay subfacies represents shallow quiet waters, the bottoms of which were covered with extensive algal vegetation. This latter subfacies represents a barely modified primitive biocenosis. Because there is much similarity between faunal groups at all localities, resemblance indices according to Pirlot, Crusafont, and Truyols formulas were calculated. These formulas are briefly evaluated with respect to their ability to discriminate between similar faunal groups. DE - DESCRIPTORS: Cenozoic-; Colombia-; faunas-; geomorphology-; Invertebrata-; invertebrate-faunas; marine-; paleoecology-; Pleistocene-; Quaternary-; shore-features; South-America; stratigraphy-; terraces-; Tierrabomba-island CC - CATEGORY CODES: 12-Stratigraphy; 23-Geomorphology DT - DOCUMENT TYPE: Serial BL - BIB LEVEL: Analytic IL - ILLUSTRATION: illus. incl. sketch map. RF - REFERENCE SOURCE: GeoRef, Copyright 2000, American Geological Institute. Reference includes data from Bibliography and Index of Geology Exclusive of North America, Geological Society of America, Boulder, CO, United States IS - ISSN: 0120-0283 CO - CODEN: UISBAV AN - ACCESSION NUMBER: 1967-002605 UD - UPDATE CODE: 1967 Registro 2928 de 5614 - GeoRef Disc 1: 1785-1974 TI - TITLE: Observaciones palinologicas sobre el plioceno de Cartagena (Colombia). AU - AUTHORS: Sole-de-Porta-N SO - SOURCE: Boletin de Geologia (Bucaramanga). 4; Pages 45-50. 1960. PB - PUBLISHER: Universidad Industrial de Santander. Bucaramanga, Colombia. 1960. CP - COUNTRY OF PUBLICATION: Colombia PY - PUBLICATION YEAR: 1960 LA - LANGUAGE: Spanish LS - LANGUAGE OF SUMMARY: English; French AB - ABSTRACT: Bluish marls at Cerro de la Popa in Cartagena (Colombia) are 155 meters thick but thin to 30 meters at nearby Cerro Limitada. Only the upper rocks of Cerro de la Popa are present at Cerro Limitada. The following floral families were represented in the samples for a pollen sequence: Gramineae, Rubiaceae, Loganiaceae, Caryophyllaceae, Compositae, Malvaceae, Ericaceae, Lythraceae, Aquifoliaceae, Betulaceae, Malphigiaceae, Epacridaceae, Bombacaceae, Valerianaceae, Umbelliferae, Polygonaceae, Coniferae, Lycopodiaceae, Cyatheaceae, Polypodiaceae, and undifferentiated angiosperms. The floral character indicates a cool climate. The occurrence of Alnus is presumed to indicate an origin of this form from Central America or the Antilles. On the basis of pollen analysis and the presence of Alnus, the rocks are considered to be of upper Pliocene age, although there is a remote possibility that they could be of lower Pleistocene. DE - DESCRIPTORS: Bolivar-Colombia; Cartagena-Colombia; Cenozoic-; Colombia-; microfossils-; Neogene-; paleontology-; palynomorphs-; Pliocene-; Pliocene-marls; South-America; Tertiary- CC - CATEGORY CODES: 09-Paleobotany DT - DOCUMENT TYPE: Serial BL - BIB LEVEL: Analytic IL - ILLUSTRATION: illus. RF - REFERENCE SOURCE: GeoRef, Copyright 2000, American Geological Institute. Reference includes data from Bibliography and Index of Geology Exclusive of North America, Geological Society of America, Boulder, CO, United States IS - ISSN: 0120-0283 CO - CODEN: UISBAV AN - ACCESSION NUMBER: 1967-002606 UD - UPDATE CODE: 1967 Registro 2929 de 5614 - GeoRef Disc 1: 1785-1974 TI - TITLE: Los equidos fosiles de la sabana de Bogota. AU - AUTHORS: Porta-Jaime-de SO - SOURCE: Boletin de Geologia (Bucaramanga). 4; Pages 51-78. 1960. PB - PUBLISHER: Universidad Industrial de Santander. Bucaramanga, Colombia. 1960. CP - COUNTRY OF PUBLICATION: Colombia PY - PUBLICATION YEAR: 1960 LA - LANGUAGE: Spanish LS - LANGUAGE OF SUMMARY: English; French AB - ABSTRACT: The type skull of Equus lasallei Daniel, an important third interglacial Pleistocene horse from the Bogota plateau, is redescribed. The womer's arrangement cannot be observed, but according to its anatomical and dentary character the genus can be referred to the subgenus Amerhippus. The species is recognizable by its high and particularly elongated skull which gives it a rather dolichocephalic form, and by the length of the diastem and the relative slenderness of the rostrum which are similar to E. (A.) curvidens and Grevy's zebra. Although the type skull is that of an individual in advanced old age, the upper cheek teeth show the fossetes widely developed and the enameled line complexly wrinkled. It is concluded that E. (A.) curvidens and E. (A.) andium probably do not occur on the high plateaus of Bogota. Also, E. (A.) andium cannot be revised because isolated teeth are the only materials extant. DE - DESCRIPTORS: Cenozoic-; Chordata-; Colombia-; Equidae-; Equus-; Equus-lasallei-Daniel; Eutheria-; Hippomorpha-; Mammalia-; paleontology-; Perissodactyla-; Pleistocene-; Quaternary-; Sabana-de-Bogota; skull-morphology; South-America; Tetrapoda-; Theria-; Vertebrata- CC - CATEGORY CODES: 11-Vertebrate-paleontology DT - DOCUMENT TYPE: Serial BL - BIB LEVEL: Analytic IL - ILLUSTRATION: illus. RF - REFERENCE SOURCE: GeoRef, Copyright 2000, American Geological Institute. Reference includes data from Bibliography and Index of Geology Exclusive of North America, Geological Society of America, Boulder, CO, United States IS - ISSN: 0120-0283 CO - CODEN: UISBAV AN - ACCESSION NUMBER: 1967-002607 UD - UPDATE CODE: 1967 Registro 2930 de 5614 - GeoRef Disc 1: 1785-1974 TI - TITLE: Geologa de la region occidental de Garca Rovira. AU - AUTHORS: Julivert-M SO - SOURCE: Boletin de Geologia (Bucaramanga). 5; Pages 5-32. 1960. PB - PUBLISHER: Universidad Industrial de Santander. Bucaramanga, Colombia. 1960. CP - COUNTRY OF PUBLICATION: Colombia PY - PUBLICATION YEAR: 1960 LA - LANGUAGE: Spanish LS - LANGUAGE OF SUMMARY: English; French AB - ABSTRACT: The Cretaceous in the Garca Rovira area along the eastern border of the Santander massif has a thickness of less than 2000 meters and is transgressive onto the metamorphics and quartzites of the massif. There is considerably more sandstone in the Cretaceous here than in equivalent strata to the west. Beds from Valanginian to Maestrichtian age are recognized. The Giron formation of Jurassic-Triassic age is absent due to pre-Cretaceous truncation along the border of the massif. It is present on a minor scale to the east, where it increases in thickness to 150 meters. Three major tectonic elements are present: two north-south trending synclines with an intervening complex anticline. The structure of this region consists of a series of folds and faults that are in marked contrast to the structure west of the Santander massif, which is simple block faulting. In this structurally more simple area, the Mesozoic sedimentary section is 3000 to 4000 meters thicker than in the Garca Rovira area. DE - DESCRIPTORS: Colombia-; Cretaceous-; Garca-Rovira; Mesozoic-; South-America; stratigraphy-; tectonics- CC - CATEGORY CODES: 12-Stratigraphy; 16-Structural-geology DT - DOCUMENT TYPE: Serial; Map BL - BIB LEVEL: Analytic MS - MAP SCALE: 1:100,000 IL - ILLUSTRATION: illus. incl. geol. map . RF - REFERENCE SOURCE: GeoRef, Copyright 2000, American Geological Institute. Reference includes data from Bibliography and Index of Geology Exclusive of North America, Geological Society of America, Boulder, CO, United States IS - ISSN: 0120-0283 CO - CODEN: UISBAV AN - ACCESSION NUMBER: 1967-002608 UD - UPDATE CODE: 1967 Registro 2931 de 5614 - GeoRef Disc 1: 1785-1974 TI - TITLE: Estratigrafa de Garca Rovira. AU - AUTHORS: Acosta-C-E SO - SOURCE: Boletin de Geologia (Bucaramanga). 5; Pages 33-40. 1960. PB - PUBLISHER: Universidad Industrial de Santander. Bucaramanga, Colombia. 1960. CP - COUNTRY OF PUBLICATION: Colombia PY - PUBLICATION YEAR: 1960 LA - LANGUAGE: Spanish LS - LANGUAGE OF SUMMARY: English; French AB - ABSTRACT: Three important aspects of the stratigraphy of the Garca Rovira area in southeastern Santander are the constancy of some horizons allowing correlations with the regions of Cundinamarca and Ro Sogamoso; the thickness of the total Cretaceous, which does not exceed 2000 meters; and its contrast with the Cundinamarca area where the same time interval is represented by more than 10,000 meters of sediments. Considering the thickness of the Turonian and Maestrichtian, which are each in excess of 300 meters, as well as the thickness of other Cretaceous stages, the beds representing the Barremian and Santonian stages must be very thin. Exogyra is so abundant in all beds that it could be studied from a phylogenetic viewpoint. DE - DESCRIPTORS: Colombia-; Cretaceous-; Garca-Rovira; Mesozoic-; South-America; stratigraphy- CC - CATEGORY CODES: 12-Stratigraphy DT - DOCUMENT TYPE: Serial BL - BIB LEVEL: Analytic IL - ILLUSTRATION: illus. RF - REFERENCE SOURCE: GeoRef, Copyright 2000, American Geological Institute. Reference includes data from Bibliography and Index of Geology Exclusive of North America, Geological Society of America, Boulder, CO, United States IS - ISSN: 0120-0283 CO - CODEN: UISBAV AN - ACCESSION NUMBER: 1967-002609 UD - UPDATE CODE: 1967 Registro 2932 de 5614 - GeoRef Disc 1: 1785-1974 TI - TITLE: Un nuevo Bovido pleistocenico de Colombia: Colombibos atactodontus. AU - AUTHORS: Hernandez-Camacho-Jorge; Porta-Jaime-de SO - SOURCE: Boletin de Geologia (Bucaramanga). 5; Pages 41-52. 1960. PB - PUBLISHER: Universidad Industrial de Santander. Bucaramanga, Colombia. 1960. CP - COUNTRY OF PUBLICATION: Colombia PY - PUBLICATION YEAR: 1960 LA - LANGUAGE: Spanish AB - ABSTRACT: Bovids are absent in the pre-Pleistocene fauna of South America, but during the Pleistocene, the development of various grasses offered a favorable environment for the emigration of nearctic bovines. Their limited expansion could indicate their recent emigration. A review of the occurrence of the wild Bovidae in South America during the Pleistocene and Recent concludes that only Platatherium pampaeum from the Pleistocene of Argentina is significant, although its characters and relationships must still be critically evaluated. A new monotypic genus, Colombibos atactodontus, is described from Soata (Department of Boyaca, Colombia). This new genus, which is referred to the late Pleistocene, is recognized by its molar-like morphology of P4. 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