Results 11 to 20 of about 649 (151)

Presencia de Stegomastodon (Gomphotheriidae, Proboscidea) en el Pleistoceno Superior de la zona costera de Santa Clara del Mar (Argentina) [PDF]

Estudios Geologicos, 2008
Se describen restos bien conservados de gonfoterios (Mammalia, Proboscidea) encontrados en los niveles pleistocenos que afloran en los acantilados costeros de Santa Clara del Mar (Mar del Plata, Argentina).
M. T. Alberdi, J. L. Prado
doaj   +8 more sources

Presencia del género Stegomastodon entre los restos fósiles de mastodontes de Chile (Gomphotheriidae), Pleistoceno superior

Estudios Geologicos, 2005
Nuevos materiales fósiles de Gomphotheriidae obtenidos recientemente, estimularon a los autores a estudiarlos y a revisar algunos otros restos de esta familia, que habían sido asignados, el año 2000, a Cuvieronius hyodon (Fischer).
D. Frassinetti, M. T. Alberdi
doaj   +5 more sources

Revisión y estudio de los restos fósiles de mastodontes de Chile (Gomphotheriidae): Cuvieronius hyodon, Pleistoceno superior

Estudios Geologicos, 2000
Se describen y sitúan taxonómicamente los restos de mastodontes de las localidades chilenas. Se identifica una sola forma: Cuvieronius hyodon (Fischer) para el Pleistoceno superior en Chile.
D. Frassinetti, M. T. Alberdi
doaj   +5 more sources

Nuevo ejemplar de Cuvieronius hyodon (Proboscidea: Gomphotheriidae) del Pleistoceno de Costa Rica

Revista de Biología Tropical, 1998
A lower mastodont molar was found in Nacaome river, Nicoya, Guanacaste, Costa Rica. It is a Pleistocene specimen of Cuvieronius hyodon. C. hyodon and Haplomastodon waringi, mountain and savanna mastodonts respectively, have been found in the same place ...
Rafael Acuña-Mesén, Elmer García-Díaz   +1 more
doaj   +8 more sources

Eighteen million years of diverse enamel proteomes from the East African Rift. [PDF]

Nature
Research into the palaeobiology of extinct taxa through ancient DNA and proteomics has been mostly limited to Plio-Pleistocene fossils1-9, due to molecular breakdown over time, which is exacerbated in tropical settings1-3.
Green DR, Uno KT, Miller ER, Feibel CS, Aoron EE, Beck CC, Grossman A, Kirera FM, Kirinya MM, Leakey LN, Liutkus-Pierce C, Manthi FK, Ndiema EK, Nengo IO, Nyete C, Rowan J, Russo GA, Sanders WJ, Smiley TM, Princehouse P, Vitek NS, Cleland TP.   +21 more
europepmc   +3 more sources

A proboscidean from the late Oligocene of Eritrea, a "missing link" between early Elephantiformes and Elephantimorpha, and biogeographic implications. [PDF]

Proc Natl Acad Sci U S A, 2006
We report on a late Oligocene proboscidean species from Eritrea, dated to 26.8 ± 1.5 Mya. This “missing link” between early elephantiformes and Elephantimorpha is the oldest known nongomphothere proboscidean to probably display horizontal tooth ...
Shoshani J, Walter RC, Abraha M, Berhe S, Tassy P, Sanders WJ, Marchant GH, Libsekal Y, Ghirmai T, Zinner D.   +9 more
europepmc   +3 more sources

The Proboscidean Gomphotheres (Mammalia, Gomphotheriidae) from Southernmost South America [PDF]

Quaternary Science Reviews, 2019
The Gomphotheriidae family included a large number of taxa, and a fossil record with extensive geographic and stratigraphic distribution. In South America, the gomphotheres evolved the dibelodont and brevirostrian characteristics, with brachydont, bunodot and subhypsodont molar teeth.
Dimila Mothé, Leonardo Avilla
  +9 more sources

Africa as an evolutionary arena for large fruits

New Phytologist, Volume 240, Issue 4, Page 1574-1586, November 2023., 2023
Summary Strong paleoclimatic change and few Late Quaternary megafauna extinctions make mainland Africa unique among continents. Here, we hypothesize that, compared with elsewhere, these conditions created the ecological opportunity for the macroevolution and geographic distribution of large fruits.
Friederike J. R. Wölke, Andressa Cabral, Jun Ying Lim, W. Daniel Kissling, Renske E. Onstein   +4 more
wiley   +1 more source

Recommender systems for fossil community distribution modelling

Methods in Ecology and Evolution, Volume 13, Issue 8, Page 1690-1706, August 2022., 2022
Abstract We propose to leverage recommender systems from machine learning to build large‐scale community distribution models for the mammalian fossil record. Recommender systems are behind most online life today, from shopping to news personalisation, online dating, or the selection of study programmes or fastest routes.
Indrė Žliobaitė
wiley   +1 more source

Could foxes be surrogate seed dispersers of a megafaunal fruit vine in southern South America?

Ecosphere, Volume 13, Issue 7, July 2022., 2022
Abstract Plants that bear oversized fruits, but do not co‐occur with present‐day large‐bodied frugivores to disperse their seeds, are considered to represent seed dispersal anachronisms. It is hypothesized that these plants were originally dispersed by the megafauna that became extinct at the end of the Pleistocene.
Diego Muñoz‐Concha, Enrique Mundaca, Diego Alarcón, Juan Machuca, Eduardo Crisol‐Martínez, Andrea Loayza   +5 more
wiley   +1 more source