Fernando Etayo

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]

Dr. Fernando Etayo
Fernando Etayo Serna
Born	Colombia
Nationality	Colombian
Education	Universidad Nacional de Colombia (MSc.)
Alma mater	University of California, Berkeley (PhD)
Known for	Biostratigraphical research, Cretaceous ammonites of Colombia, definitions of geologic formations
Awards	Louderbach 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)

Biography

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

Heinzia, known from the Trincheras Fm.

Padillasaurus leivaensis from the Paja Fm.

Age	Formation	Type locality	Year	Notes
Early Maastrichtian	La Luna Formation	Machiques	1986	[10]
Late Campanian
Campanian	Olini Group	Piedras	1969	[11]
Santonian
	Conejo Formation	Toca	1969	[12]
Turonian
	La Frontera Formation	Albán	1969	[13]
Turonian Cenomanian	Capacho Formation	Chiscas	1985	[14]
	Chipaque Formation	Chipaque	1964	[15]
	Simijaca Formation	Simijaca	1969	[16]
Cenomanian	Churuvita Formation	Sáchica-Samacá	1968	[17]
Early Cenomanian	Hiló Formation	Apulo-Anapoima	1969	[18]
Late Albian
Cenomanian	Chiquinquirá Sandstone	Chiquinquirá	1968	[19]
Mid Aptian
Early Coniacian	Güagüaquí Group	Güagüaquí River	1979	[20]
Mid Albian
Early-Mid Albian	Puerto Romero Formation	Puerto Boyacá	1979	[20]
Early Albian	Capotes Formation	Bituima-Guayabal	1969	[21]
	La Naveta Formation	Bogotá River	1969	[22]
Early Albian Late Aptian	Tibú-Mercedes Formation	Pamplona	1986	[23]
	Tablazo Formation	Sutamarchán	1968	[19]
Late Aptian	Socotá Formation	Apulo	1969	[24]
Early Aptian	Trincheras Formation	Apulo	1969	[25]
Late Aptian	Paja Formation	Villa de Leyva	1968	[26]
Late Hauterivian
Early Hauterivian	Ritoque Formation	Villa de Leyva	1968	[27]
Valanginian	Rosablanca Formation	Mesa de Los Santos	1968	[27]
Early Valanginian	Cumbre Formation	Arcabuco-Moniquirá	1969	[28]
Berriasian	Arcabuco Formation	Arcabuco	1985	[29]
Tithonian

Works

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

• 1994 - Estudios geológicos del Valle Superior del Magdalena
• 1986 - Evaluación de los recursos minerales no combustibles de Colombia
• 1983 - Mapa de terrenos geológicos de Colombia
• 1979 - Zonation of the Cretaceous of central Colombia by ammonites

Articles

• 2009 - Bioestratigrafía de la Plancha 210 Guateque
• 1985 - Paleontología estratigráfica del sistema Cretácico en la Sierra Nevada del Cocuy
• 1979 - La fauna de moluscos del Paleoceno de Colombia. I. Moluscos de una capa del Paleoceno de Manantial (Guajira)
• 1968 - El Sistema Cretáceo en la región de Villa de Leiva y zonas próximas
• 1964 - Posición de las faunas en los depósitos cretácicos colombianos y su valor en la subdivisión cronológica de los mismos
• 1962 - Comprobación biométrica de las especies Codakia orbicularis y Codakia orbiculata

See also

• Biography portal
• Colombia portal
• Geology portal
• Paleontology portal

• Geology of the Altiplano Cundiboyacense
• Geology of the Eastern Hills of Bogotá
• Bogotá Formation
• Etayoa bacatensis
• María Páramo