Fossil localities of the Santa Cruz Formation (Early Miocene, Patagonia, Argentina) prospected by Carlos Ameghino in 1887 revisited and the location of the Notohippidian

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Between January and September of 1887 Carlos Ameghino carried out his first geologic and paleontological expedition to the Río Santa Cruz, Patagonia. Based on the fossils and geologic information compiled, in 1887 and 1889, Florentino Ameghino named more than 120 new species of extinct mammals and h...

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Autores principales: Fernícola, Juan Carlos, Cuitiño, José Ignacio, Vizcaíno, Sergio Fabián, Bargo, María Susana, Kay, Richard F.
Formato: Articulo
Lenguaje:Inglés
Publicado: 2014
Materias:
Paleontología
Carlos Ameghino
Rio Santa Cruz
Fossil mammals
Santacrucian
Notohippidian
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/101935
https://ri.conicet.gov.ar/11336/18054
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-101935
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Paleontología
Carlos Ameghino
Rio Santa Cruz
Fossil mammals
Santacrucian
Notohippidian
spellingShingle Paleontología
Carlos Ameghino
Rio Santa Cruz
Fossil mammals
Santacrucian
Notohippidian
Fernícola, Juan Carlos
Cuitiño, José Ignacio
Vizcaíno, Sergio Fabián
Bargo, María Susana
Kay, Richard F.
Fossil localities of the Santa Cruz Formation (Early Miocene, Patagonia, Argentina) prospected by Carlos Ameghino in 1887 revisited and the location of the Notohippidian
topic_facet Paleontología
Carlos Ameghino
Rio Santa Cruz
Fossil mammals
Santacrucian
Notohippidian
description Between January and September of 1887 Carlos Ameghino carried out his first geologic and paleontological expedition to the Río Santa Cruz, Patagonia. Based on the fossils and geologic information compiled, in 1887 and 1889, Florentino Ameghino named more than 120 new species of extinct mammals and his Formación Santacruceña and Piso Santacruceño (Santacrucian stage). Data published by both brothers state that the specimens were collected in outcrops by the Río Santa Cruz, between 90 and 200 km west of its mouth. However, information in the posthumously published letters and Travel Diary of C. Ameghino allows us to recognize a fourth locality, Río Bote, at about 50 km further southwest. In 1900, 1902, F. Ameghino divided the Piso Santacruceño in a younger étage Santacruzienne and older étage Notohippidéen, restricting the geographical distribution of the latter to Kar Aiken locality, northeast of Lago Argentino. However, 15 of the 54 species that F. Ameghino listed as exclusively Notohippidian stage already had been named on specimens collected South to the Río Santa Cruz in 1887, two year prior to C. Ameghino's first visit to Kar Aiken. Based on historical information and several expeditions to the Río Santa Cruz and its environs, in this contribution we establish the geographical locations of the 1887 localities, formalize their names, evaluate the stratigraphic position of the fossil-bearing levels, and analyze the geographic extension of the Notohippidian, inferring that Río Bote is where C. Ameghino first collected species that came to define the Notohippidian.
format Articulo
Articulo
author Fernícola, Juan Carlos
Cuitiño, José Ignacio
Vizcaíno, Sergio Fabián
Bargo, María Susana
Kay, Richard F.
author_facet Fernícola, Juan Carlos
Cuitiño, José Ignacio
Vizcaíno, Sergio Fabián
Bargo, María Susana
Kay, Richard F.
author_sort Fernícola, Juan Carlos
title Fossil localities of the Santa Cruz Formation (Early Miocene, Patagonia, Argentina) prospected by Carlos Ameghino in 1887 revisited and the location of the Notohippidian
title_short Fossil localities of the Santa Cruz Formation (Early Miocene, Patagonia, Argentina) prospected by Carlos Ameghino in 1887 revisited and the location of the Notohippidian
title_full Fossil localities of the Santa Cruz Formation (Early Miocene, Patagonia, Argentina) prospected by Carlos Ameghino in 1887 revisited and the location of the Notohippidian
title_fullStr Fossil localities of the Santa Cruz Formation (Early Miocene, Patagonia, Argentina) prospected by Carlos Ameghino in 1887 revisited and the location of the Notohippidian
title_full_unstemmed Fossil localities of the Santa Cruz Formation (Early Miocene, Patagonia, Argentina) prospected by Carlos Ameghino in 1887 revisited and the location of the Notohippidian
title_sort fossil localities of the santa cruz formation (early miocene, patagonia, argentina) prospected by carlos ameghino in 1887 revisited and the location of the notohippidian
publishDate 2014
url http://sedici.unlp.edu.ar/handle/10915/101935
https://ri.conicet.gov.ar/11336/18054
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