Fernando Etayo

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Dr.
Fernando Etayo
Fernando Etayo Serna
Born
Nationality Colombian
Education Universidad Nacional de Colombia (MSc.)
Alma mater University of California, Berkeley (PhD)
Known forBiostratigraphical research, Cretaceous ammonites of Colombia, definitions of geologic formations
AwardsLouderbach Memorial Award in Stratigraphy (1975)
Scientific career
Fields Geology, geophysics, palaeontology, stratigraphy
Institutions INGEOMINAS
Thesis Zonation of the Cretaceous of Central Colombia by ammonites  (1975)

Fernando Etayo Serna is a Colombian paleontologist and geologist. His contributions on 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. [1]

Contents

Biography

The first publication by Etayo was about Codakia orbicularis Codakia orbicularis (Linnaeus, 1758) 2013 000.JPG
The first publication by Etayo was about Codakia orbicularis

In 1962, Etayo Serna published his first work about the species Codakia orbicularis and Codakia orbiculata . [2] [3] 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. [4] [5] His work has been focused on the descriptions of the various ammonites found in the same formation. [6] He also co-authored the 2016 publication about Stenorhynchosaurus munozi , found in the same formation. [7]

Etayo has published in Spanish and English. [8] In 1975, the year Etayo received his PhD degree, he was awarded the Louderbach Memorial Award in Stratigraphy from the University of California, Berkeley. [1]

The ungulate Etayoa bacatensis , found in the Late Paleocene to Early Eocene Bogotá Formation south of Bogotá, has been named in honour of Etayo. [9]

Formations described by Etayo

Oyster fossils from the Chipaque Formation Chipaque Formation 2 - Oysters - Sandstone Bed - Chipaque - Cundinamarca.jpg
Oyster fossils from the Chipaque Formation
Heinzia, known from the Trincheras Fm. Pulchelliidae - Heinzia colleti.JPG
Heinzia , known from the Trincheras Fm.
Padillasaurus leivaensis from the Paja Fm. FICHA 4 VERTEBRAS.gif
Padillasaurus leivaensis from the Paja Fm.
Age Formation Type locality YearNotes
Early Maastrichtian La Luna Formation Machiques 1986
Late Campanian
Campanian Olini Group Piedras 1969
Santonian
Conejo Formation Toca 1969
Turonian
La Frontera Formation Albán 1969
Turonian
Cenomanian
Capacho Formation Chiscas 1985
Chipaque Formation Chipaque 1964
Simijaca Formation Simijaca 1969
Cenomanian Churuvita Formation Sáchica-Samacá 1968
Early Cenomanian Hiló Formation Apulo-Anapoima 1969
Late Albian
Cenomanian Chiquinquirá Sandstone Chiquinquirá 1968
Mid Aptian
Early Coniacian Güagüaquí Group Güagüaquí River 1979
Mid Albian
Early-Mid Albian Puerto Romero Formation Puerto Boyacá 1979
Early Albian Capotes Formation Bituima-Guayabal 1969
La Naveta Formation Bogotá River 1969
Early Albian
Late Aptian
Tibú-Mercedes Formation Pamplona 1986
Tablazo Formation Sutamarchán 1968
Late Aptian Socotá Formation Apulo 1969
Early Aptian Trincheras Formation Apulo 1969
Late Aptian Paja Formation Villa de Leyva 1968
Late Hauterivian
Early Hauterivian Ritoque Formation Villa de Leyva 1968
Valanginian Rosablanca Formation Mesa de Los Santos 1968
Early Valanginian Cumbre Formation Arcabuco-Moniquirá 1969
Berriasian Arcabuco Formation Arcabuco 1985
Tithonian

Works

Etayo has contributed to the understanding of ammonites of Colombia, seen here close to Villa de Leyva Piso de fosiles del Convento del Santo Ecce Homo. Bopyaca.JPG
Etayo has contributed to the understanding of ammonites of Colombia, seen here close to Villa de Leyva

This list is a selection. [1] [3] [8]

Books

Articles

See also

Related Research Articles

<span class="mw-page-title-main">Chipaque Formation</span>

The Chipaque Formation (Spanish: Formación Chipaque, K2cp, Kc) is a geological formation of the Altiplano Cundiboyacense, Eastern Ranges of the Colombian Andes. The formation is also described as Gachetá Formation, named after Gachetá, in the area of the Llanos foothills of the Eastern Ranges. The predominantly organic shale formation dates to the Late Cretaceous period; Cenomanian-Turonian epochs and has a maximum thickness of 1,700 metres (5,600 ft). The formation, rich in TOC, is an important oil and gas generating unit for the giant oilfields Cupiagua and Cusiana of the Eastern Ranges as well as in the Llanos Orientales.

<span class="mw-page-title-main">Guadalupe Group</span>

The Guadalupe Group (Spanish: Grupo Guadalupe, K2G, Ksg) is a geological group of the Altiplano Cundiboyacense, Eastern Ranges of the Colombian Andes. The group, a sequence of shales and sandstones, is subdivided into three formations; Arenisca Dura, Plaeners and Arenisca Labor-Tierna, and dates to the Late Cretaceous period; Campanian-Maastrichtian epochs and at its type section has a thickness of 750 metres (2,460 ft).

<span class="mw-page-title-main">Guaduas Formation</span> Geological formation in the Colombian Andes

The Guaduas Formation (Spanish: Formación Guaduas, K2P1G, K2E1G, KPgg, KTg, TKg, Ktg) is a geological formation of the Middle Magdalena Basin and the Altiplano Cundiboyacense, Eastern Ranges of the Colombian Andes. The predominantly shale with coalbed formation dates to the Late Cretaceous and Paleogene periods; Maastrichtian-Paleocene epochs, and has a maximum thickness of 1,090 metres (3,580 ft). Fossils of Coussapoa camargoi, Ficus andrewsi, Berhamniphyllum sp. and Archaeopaliurus boyacensis have been found in coalbeds in Zipaquirá and Tasco, Boyacá.

The Cacho Formation (Spanish: Formación Cacho, E1C, Tpc, Tec) is a geological formation of the Altiplano Cundiboyacense, Eastern Ranges of the Colombian Andes. The predominantly sandstone formation with thin intercalated beds of shales dates to the Paleogene period; Middle to Late Paleocene epochs, and has a maximum thickness of 400 metres (1,300 ft).

<span class="mw-page-title-main">Bogotá Formation</span> Geological formation in Bogotá, Colombia

The Bogotá Formation (Spanish: Formación Bogotá, E1-2b, Tpb, Pgb) is a geological formation of the Eastern Hills and Bogotá savanna on the Altiplano Cundiboyacense, Eastern Ranges of the Colombian Andes. The predominantly shale and siltstone formation, with sandstone beds intercalated, dates to the Paleogene period; Upper Paleocene to Lower Eocene epochs, with an age range of 61.66 to 52.5 Ma, spanning the Paleocene–Eocene Thermal Maximum. The thickness of the Bogotá Formation ranges from 169 metres (554 ft) near Tunja to 1,415 metres (4,642 ft) near Bogotá. Fossils of the ungulate Etayoa bacatensis have been found in the Bogotá Formation, as well as numerous reptiles, unnamed as of 2017.

<span class="mw-page-title-main">La Frontera Formation</span> Geological formation

The La Frontera Formation (Spanish: Formación La Frontera, K2F, Ksf) is a 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).

<span class="mw-page-title-main">Conejo Formation</span> Fossiliferous geological formation in the Eastern Ranges of the Colombian Andes

The Conejo Formation (Spanish: Formación Conejo, K2C, Kscn) is a fossiliferous geological formation of the Altiplano Cundiboyacense, Eastern Ranges of the Colombian Andes. The uppermost unit of the Villeta Group, a sequence of shales and sandstones dates to the Late Cretaceous period; Turonian, Coniacian and Santonian epochs, and has a maximum thickness of 1,022 metres (3,353 ft).

<span class="mw-page-title-main">Capotes Formation</span> Geological formation in Colombia

The Capotes Formation 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).

<span class="mw-page-title-main">Socotá Formation</span>

The Socotá Formation is a geological formation of the Altiplano Cundiboyacense, Eastern Ranges of the Colombian Andes. The formation consisting of a lower unit of calcareous sandstones and an upper sequence of shales dates to the Early Cretaceous period; Late Aptian epoch and in Quipile has a measured thickness of 255 metres (837 ft) with large regional variations. The formation hosts ammonite fossils.

<span class="mw-page-title-main">Trincheras Formation</span>

The Trincheras Formation is a geological formation of the Altiplano Cundiboyacense, Eastern Ranges of the Colombian Andes. The formation consisting of a lower unit of calcareous shales and an upper sequence of shales dates to the Early Cretaceous period; Early Aptian epoch and has a maximum thickness of 1,260 metres (4,130 ft). The formation, deposited in a marine platform environment, part of a transgressive cycle, hosts ammonite, bryozoan, mollusc and echinoid fossils.

The Las Juntas Formation or Las Juntas Sandstone is a geological formation of the Altiplano Cundiboyacense and Tenza Valley, Eastern Ranges of the Colombian Andes. The Las Juntas Formation is found in the departments Cundinamarca, Boyacá and Casanare. The predominantly sandstone formation dates to the Early Cretaceous period; Hauterivian epoch, and has a maximum thickness of 910 metres (2,990 ft).

<span class="mw-page-title-main">Macanal Formation</span>

The Macanal Formation or Macanal Shale is a fossiliferous geological formation of the Altiplano Cundiboyacense and Tenza Valley in the Eastern Ranges of the Colombian Andes. The predominantly organic shale formation dates to the Early Cretaceous period; Berriasian to Valanginian epochs and has a maximum thickness of 2,935 metres (9,629 ft). The Macanal Formation contains numerous levels of fossiliferous abundances. Bivalves, ammonites and fossil flora have been found in the formation.

<span class="mw-page-title-main">Fómeque Formation</span> Geological formation in the Colombian Andes

The Fómeque Formation is a geological formation of the Altiplano Cundiboyacense, Eastern Ranges of the Colombian Andes. The predominantly organic shale formation dates to the Early Cretaceous period; Barremian to Late Aptian epochs and has a maximum thickness of 1,200 metres (3,900 ft).

<span class="mw-page-title-main">Une Formation</span> Geological Formation

The Une Formation is a geological formation of the Altiplano Cundiboyacense, Eastern Ranges of the Colombian Andes. The predominantly sandstone formation dates to the Middle Cretaceous period; Albian to Cenomanian epochs and has a maximum thickness of 1,100 metres (3,600 ft).

The La Naveta Formation is a geological formation of the Altiplano Cundiboyacense, Eastern Ranges of the Colombian Andes. The formation consists of a lower part of coraline limestones and an upper sequence of quartzitic sandstones with intercalated black shales and dates to the Early Cretaceous period; Hauterivian to Barremian epochs.

<span class="mw-page-title-main">Guavio Formation</span>

The Guavio Formation is a geological formation of the Altiplano Cundiboyacense, Eastern Ranges of the Colombian Andes. The formation consists of conglomerates, shales and limestones, dates to the Late Jurassic and Early Cretaceous periods; Tithonian to Berriasian epochs and has a maximum thickness of 1,000 metres (3,300 ft).

<span class="mw-page-title-main">Villeta Group</span> Geological group in central Colombia

The Villeta Group is a geological group of the Eastern Ranges of the Colombian Andes, to the west of the Altiplano Cundiboyacense. The group, a sequence of shales, limestones and sandstones, is subdivided into various formations; Conejo, La Frontera, Simijaca, Hiló, Pacho, Chiquinquirá, Capotes, Socotá, El Peñón, and Trincheras, and dates to the Cretaceous period; Aptian-Coniacian epochs. The group stretches out across four departments, from Huila in the south, through Cundinamarca and Boyacá to southern Santander in the north. The upper part of the Villeta Group is time-equivalent with the La Luna Formation of the Middle Magdalena Valley (VMM) and Sierra Nevada del Cocuy, the Oliní and Güagüaquí Groups of the Guaduas-Vélez synclinal and the Chipaque Formation of the Altiplano Cundiboyacense. The lower part has been correlated with the Simití, Tablazo and Paja Formations of the VMM, the upper Tibasosa, Une and Fómeque Formations of the Altiplano Cundiboyacense and the Capacho, Aguardiente, Tibú-Mercedes and upper Río Negro Formations of the Sierra Nevada del Cocuy.

<span class="mw-page-title-main">Hondita Formation</span> Fossiliferous geological formation of the Colombian Andes

The Hondita Formation is a fossiliferous geological formation of the Upper Magdalena Valley (VSM) and surrounding Central and Eastern Ranges of the Colombian Andes, extending from Cundinamarca in the north to Huila and easternmost Tolima in the south. The lowermost unit of the Güagüaquí Group, a sequence of sandy limestones and shales, dates to the Late Cretaceous period; Turonian epoch, and has a maximum thickness of 90 metres (300 ft).

<span class="mw-page-title-main">Oliní Group</span> Fossiliferous geological group

The Oliní Group (Spanish: Grupo Oliní, K3k5o, K2ol, Kso) is a fossiliferous geological group of the VMM, VSM and the eastern flanks of the Central and western flanks of the Eastern Ranges of the Colombian Andes. The regional group stretches from north to south across approximately 700 kilometres (430 mi) and dates to the Late Cretaceous period; Coniacian, Santonian and Campanian epochs, and has a maximum thickness of 287 metres (942 ft). Fossils of Eonatator coellensis have been found in the unit, near Coello, Tolima.

<span class="mw-page-title-main">Chibcha Terrane</span>

The Chibcha Terrane, named after Chibcha, is the largest of the geological provinces (terranes) of Colombia. The terrane, the oldest explored domains of which date to the Meso- to Neoproterozoic, is situated on the North Andes Plate. The megaregional Romeral Fault System forms the contact of the terrane with the Tahamí Terrane. The contact with the Caribbean and La Guajira Terranes is formed by the regional Bucaramanga-Santa Marta Fault. The northeastern boundary is formed by the regional Oca Fault, bounding the La Guajira Terrane. The terrane is emplaced over the Río Negro-Juruena Province of the Amazonian Craton along the megaregional Eastern Frontal Fault System.

References

  1. 1 2 3 (in Spanish) Curriculum Vitae Fernando Etayo
  2. (in Spanish) Etayo, 1962, Codakia orbicularis & Codakia orbiculata [ permanent dead link ]
  3. 1 2 (in Spanish) Curriculum Vitae 2 Fernando Etayo [ permanent dead link ]
  4. Carballido et al., 2015
  5. (in Spanish) Este es el Padillasaurus, el primer dinosaurio colombiano - El Tiempo
  6. (in Spanish) Científicos descubren el primer dinosaurio en suelo colombiano - Scientific American
  7. Páramo et al., 2016
  8. 1 2 Fernando Etayo at WorldCat.org
  9. Villarroel, 1987
  10. Rodríguez & Solano, 2000, p.64
  11. Rodríguez & Solano, 2000, p.23
  12. Acosta & Ulloa, 2002, p.48
  13. Acosta & Ulloa, 2002, p.47
  14. Rodríguez & Solano, 2000, p.63
  15. Acosta & Ulloa, 2002, p.54
  16. Acosta & Ulloa, 2002, p.45
  17. Rodríguez & Solano, 2000, p.33
  18. Acosta & Ulloa, 2002, p.44
  19. 1 2 Rodríguez & Solano, 2000, p.32
  20. 1 2 Rodríguez & Solano, 2000, p.22
  21. Acosta & Ulloa, 2002, p.42
  22. Acosta & Ulloa, 2002, p.38
  23. Rodríguez & Solano, 2000, p.62
  24. Acosta & Ulloa, 2002, p.41
  25. Acosta & Ulloa, 2002, p.39
  26. Rodríguez & Solano, 2000, p.31
  27. 1 2 Rodríguez & Solano, 2000, p.30
  28. Rodríguez & Solano, 2000, p.29
  29. Rodríguez & Solano, 2000, p.28

Bibliography

Notable works by Etayo

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