The Capotes Formation ( Spanish : Formación Capotes , Kic) is a geological formation of the Altiplano Cundiboyacense , Eastern Ranges of the Colombian Andes . The formation consists of calcareous black shales containing gypsum and ammonites and dates to the Early Cretaceous period; Early Albian epoch and has an approximate thickness at its type section of 550 metres (1,800 ft).
6-525: The formation was defined in 1969 by Cáceres and Etayo as a member of the Socotá Formation . The name is derived from Hacienda Capotes, southeast of Viotá . The Capotes Formation has a thickness at its type section of approximately 550 metres (1,800 ft), and is characterised by a sequence of organic rich calcareous shales with gypsum . Fossils of Douvilleiceras solitae , Neodeshayesites columbianus and Paracrioceras sp. have been found in
12-586: The paleontology in Colombia has been mainly on the descriptions of ammonites and Etayo has helped describing many fossiliferous geologic formations of Colombia . Etayo obtained his MSc. degree in geology and geophysics from the Universidad Nacional de Colombia in 1963, and his PhD in paleontology from the University of California, Berkeley in 1975. In 1962, Etayo Serna published his first work about
18-453: The Albian of current central Colombia experienced a transgressive to highstand sequence. The Capotes Formation is apart from its type locality along the road between Bituima and Guayabal , also found north and southeast of Viotá , and north and east of La Mesa . Fernando Etayo Fernando Etayo Serna is a Colombian paleontologist and geologist . His contributions on
24-692: The Capotes Formation. The Capotes Formation, part of the Villeta Group , overlies the Socotá and El Peñón Formations , and is overlain by the Hiló Formation . The age has been estimated to be Early Albian . Stratigraphically, the formation is time equivalent with the Simití Formation . The formation has been deposited in a quiet enclosed shallow marine environment . In terms of sequence stratigraphy ,
30-465: The species Codakia orbicularis and Codakia orbiculata . He has defined many geologic formations of Colombia in the 1960s and 1970s. Etayo, together with fellow paleontologist María Páramo , collaborated in describing the first dinosaur fossil found in Colombia, Padillasaurus from the Paja Formation , close to Villa de Leyva , Boyacá . His work has been focused on the descriptions of
36-639: The various ammonites found in the same formation. He also co-authored the 2016 publication about Stenorhynchosaurus munozi , found in the same formation. Etayo has published in Spanish and English. In 1975, the year Etayo received his PhD degree, he was awarded the Louderbach Memorial Award in Stratigraphy from the University of California, Berkeley. The ungulate Etayoa bacatensis , found in
#729270