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C o o r d i n a t e s : 4 ° 5 4 ′ 40 ″ N 7 4 ° 2 7 ′ 50 ″ W / 4 . 9 1 1 1 1 ° N 7 4 . 4 6 3 8 9 ° W / 4.91111; -74.46389
F r o m W i k i p e d i a , t h e f r e e e n c y c l o p e d i a
The La Frontera Formation (Spanish : Formación La Frontera , K2 geological formation , part of the Villeta Group , of the Altiplano Cundiboyacense and neighbouring areas of the Eastern Ranges of the Colombian Andes . The sequence of limestones and lydites dates to the Late Cretaceous period; Turonian epoch and has a maximum thickness of 206 metres (676 ft ).
Fossils of Yaguarasaurus columbianus Hondita Formation as the stratigraphic unit present in the Quebradas El Ocal and Itaibe in Huila. The La Frontera Formation does not outcrop south of Cundinamarca. A high diversity of ammonites has been found in the La Frontera Formation.
Etymology [ edit ]
The formation was first described by Hubach in 1931 and elevated to formation in 1969 by Cáceres and Etayo .[1] Albán , Cundinamarca.[2]
Description [ edit ]
Lithologies [ edit ]
The La Frontera Formation is characterised by a lower part consisting of limestones and an upper part comprising lydites .[1]
Stratigraphy and depositional environment [ edit ]
The La Frontera Formation overlies the Simijaca Formation and is overlain by the Conejo Formation , all units belong to the Villeta Group . The age has been estimated to be Turonian .[1] Chipaque , Hondita and La Luna Formations .[3] open marine platform to submarine fan setting.[4] maximum flooding surface .[5] concretions and a high diversity of ammonites ;[6] Wrightoceras munieri Vascoceras cf. constrictum Vascoceras cf. venezolanum Kamerunoceras sp. Kamerunoceras cf. turoniense Hoplitoides cf. lagiraldae Codazziceras ospinae Coilopoceras cf. newelli [7] Hoplitoides wohltmanni Neoptychites crassus Hoplitoides ingens Mammites sp. ?Fagesia sp. Prionocycloceras sp [8] Anomia colombiana Inoceramus sp. [2]
Yaguarasaurus [ edit ]
Fossils of Yaguarasaurus columbianus mi ) southwest of Neiva , Huila ,[9] [10] mi ) southwest of Neiva,[11] Hondita Formation is mapped.[12] [13]
Outcrops [ edit ]
Type locality of the La Frontera Formation to the west of the Bogotá savanna
The La Frontera Formation is apart from its type locality , found at surface in the north of the Bogotá savanna , in the Tabio anticlinal , along the road Ubaté -Carmen de Carupa ,[1] Chiquinquirá ,[14] Cachipay ,[15] Viotá .[16]
Regional correlations [ edit ]
See also [ edit ]
Geology of the Eastern Hills
Geology of the Ocetá Páramo
Geology of the Altiplano Cundiboyacense
References [ edit ]
^ a b c d Montoya & Reyes, 2005, p.24
^ a b Acosta & Ulloa, 2001, p.41
^ Montoya & Reyes, 2005, p.26
^ García González et al., 2009, p.218
^ Villamil, 2012, p.164
^ Villamil, 2012, p.181
^ Patarroyo, 2016, p.41
^ Blanco et al., 2004, p.26
^ 'Yaguarasaurus columbianus' in the Paleobiology Database
^ Yaguarasaurus columbianus at Fossilworks .org
^ Páramo Fonseca, 2000, p.124
^ Plancha 344, 1999
^ Plancha 345, 1999
^ Plancha 190, 2009
^ Plancha 227, 1998
^ Plancha 246, 1998
Bibliography [ edit ]
Acosta Garay, Jorge; Ulloa Melo, Carlos E. (2001), Geología de la Plancha 208 Villeta - 1:100,000 (PDF) , INGEOMINAS , pp. 1–84, retrieved 2017-04-04 Archived 2017-03-24 at the Wayback Machine
Blanco, Johana Paola; Medina, Paula Andrea; Patarroyo, Pedro (2004), "La Formación La Frontera, Sección Vereda Tóriba: Una propuesta para la designación del Lectoestratotipo" (PDF) , Geología Colombiana 29 , retrieved 2017-04-04 Archived 2017-04-05 at the Wayback Machine
García González, Mario; Mier Umaña, Ricardo; Cruz Guevara, Luis Enrique; Vásquez, Mauricio (2009), Informe Ejecutivo - evaluación del potencial hidrocarburífero de las cuencas colombianas , Universidad Industrial de Santander , pp. 1–219
Montoya Arenas, Diana María; Reyes Torres, Germán Alfonso (2005), Geología de la Sabana de Bogotá , INGEOMINAS , pp. 1–104
Páramo Fonseca , María Euridice (2000), "Yaguarasaurus columbianus (Reptilia, Mosasauridae), a primitive mosasaur from the Turonian (Upper Cretaceous) of Colombia" , Historical Biology 14 Bibcode :2000HBio...14..121P , doi :10.1080/10292380009380560 , retrieved 2018-05-30
Patarroyo, Pedro (2016), "Amonoideos y otros macrofósiles del lectoestratotipo de la Formación la Frontera, Turoniano inferior - medio (Cretácico Superior) en San Francisco, Cundinamarca (Colombia)" (PDF) , Boletín de Geología, Universidad Industrial de Santander , 38 , retrieved 2017-04-04
Villamil, Tomas (2012), Chronology Relative Sea Level History and a New Sequence Stratigraphic Model for Basinal Cretaceous Facies of Colombia , Society for Sedimentary Geology (SEPM), pp. 161–216
Maps La Frontera Fm. proper [ edit ]
Ulloa, Carlos E; Rodríguez, Erasmo (2009), Plancha 170 - Vélez - 1:100,000 INGEOMINAS , p. 1 , retrieved 2017-06-06
Fuquen M., Jaime A; Osorno M, José F. (2009), Plancha 190 - Chiquinquirá - 1:100,000 INGEOMINAS , p. 1 , retrieved 2017-06-06
Ulloa, Carlos; Acosta, Jorge (1998), Plancha 208 - Villeta - 1:100,000 INGEOMINAS , p. 1 , retrieved 2017-06-06
Montoya, Diana María; Reyes, Germán (2009), Plancha 209 - Zipaquirá - 1:100,000 INGEOMINAS , p. 1 , retrieved 2017-06-06
Ulloa, Carlos E; Rodríguez, Erasmo; Acosta, Jorge E. (1998), Plancha 227 - La Mesa - 1:100,000 INGEOMINAS , p. 1 , retrieved 2017-06-06
Acosta, Jorge E.; Ulloa, Carlos E. (1998), Plancha 246 - Fusagasugá - 1:100,000 INGEOMINAS , p. 1 , retrieved 2017-06-06
Maps Yaguarasaurus locations [ edit ]
Marquínez, Germán; Morales, C.; Núñez, Alberto (1999), Plancha 344 - Tesalia - 1:100,000 INGEOMINAS , p. 1 , retrieved 2017-06-06
Velandia, F.; Morales, C.J.; Caicedo, J.C.; Núñez, Alberto (1999), Plancha 345 - Campoalegre - 1:100,000 INGEOMINAS , p. 1 , retrieved 2017-06-06
External links [ edit ]
R e t r i e v e d f r o m " https://en.wikipedia.org/w/index.php?title=La_Frontera_Formation&oldid=1232255700 " C a t e g o r i e s : ● G e o l o g i c f o r m a t i o n s o f C o l o m b i a ● C r e t a c e o u s C o l o m b i a ● U p p e r C r e t a c e o u s S e r i e s o f S o u t h A m e r i c a ● T u r o n i a n S t a g e ● L i m e s t o n e f o r m a t i o n s ● D e e p m a r i n e d e p o s i t s ● O p e n m a r i n e d e p o s i t s ● F o s s i l i f e r o u s s t r a t i g r a p h i c u n i t s o f S o u t h A m e r i c a ● P a l e o n t o l o g y i n C o l o m b i a ● A l t i p l a n o C u n d i b o y a c e n s e ● G e o g r a p h y o f C u n d i n a m a r c a D e p a r t m e n t ● G e o g r a p h y o f B o y a c á D e p a r t m e n t H i d d e n c a t e g o r i e s : ● P a g e s u s i n g g a d g e t W i k i M i n i A t l a s ● A r t i c l e s w i t h s h o r t d e s c r i p t i o n ● S h o r t d e s c r i p t i o n m a t c h e s W i k i d a t a ● C o o r d i n a t e s o n W i k i d a t a ● A r t i c l e s c o n t a i n i n g S p a n i s h - l a n g u a g e t e x t ● W e b a r c h i v e t e m p l a t e w a y b a c k l i n k s
● T h i s p a g e w a s l a s t e d i t e d o n 2 J u l y 2 0 2 4 , a t 1 9 : 5 9 ( U T C ) . ● T e x t i s a v a i l a b l e u n d e r t h e C r e a t i v e C o m m o n s A t t r i b u t i o n - S h a r e A l i k e L i c e n s e 4 . 0 ;
a d d i t i o n a l t e r m s m a y a p p l y . B y u s i n g t h i s s i t e , y o u a g r e e t o t h e T e r m s o f U s e a n d P r i v a c y P o l i c y . W i k i p e d i a ® i s a r e g i s t e r e d t r a d e m a r k o f t h e W i k i m e d i a F o u n d a t i o n , I n c . , a n o n - p r o f i t o r g a n i z a t i o n . ● P r i v a c y p o l i c y ● A b o u t W i k i p e d i a ● D i s c l a i m e r s ● C o n t a c t W i k i p e d i a ● C o d e o f C o n d u c t ● D e v e l o p e r s ● S t a t i s t i c s ● C o o k i e s t a t e m e n t ● M o b i l e v i e w
Colombia
Geology of the Eastern Hills
Geology of the Ocetá Páramo
Geology of the Altiplano Cundiboyacense
