Search Results - "Javier N. Gelfo"

A mitogenomic timetree for Darwin’s enigmatic South American mammal Macrauchenia patachonica by Westbury, Michael, Baleka, Sina, Barlow, Axel, Hartmann, Stefanie, Paijmans, Johanna L.A., Kramarz, Alejandro, Forasiepi, Analía M, Bond, Mariano, Gelfo, Javier N., Reguero, Marcelo A., López-Mendoza, Patricio, Taglioretti, Matias, Scaglia, Fernando, Rinderknecht, Andrés, Jones, Washington, Mena, Francisco, Billet, Guillaume, de Muizon, Christian, Aguilar, José Luis, MacPhee, Ross D.E., Hofreiter, Michael

“…The unusual mix of morphological traits displayed by extinct South American native ungulates (SANUs) confounded both Charles Darwin, who first discovered them,…”
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Paleogene Land Mammal Faunas of South America; a Response to Global Climatic Changes and Indigenous Floral Diversity by Woodburne, Michael O., Goin, Francisco J., Bond, Mariano, Carlini, Alfredo A., Gelfo, Javier N., López, Guillermo M., Iglesias, A., Zimicz, Ana N.

“…An appraisal of Paleogene floral and land mammal faunal dynamics in South America suggests that both biotic elements responded at rate and extent generally…”
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Final Gondwana breakup: The Paleogene South American native ungulates and the demise of the South America–Antarctica land connection by Reguero, Marcelo A., Gelfo, Javier N., López, Guillermo M., Bond, Mariano, Abello, Alejandra, Santillana, Sergio N., Marenssi, Sergio A.

“…The biogeographic hypothesis more accepted today is that Antarctica (West Antarctica) and southern South America (Magellan region, Patagonia) were connected by…”
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Cranial Morphology of the Late Oligocene Patagonian Notohippid Rhynchippus equinus Ameghino, 1897 (Mammalia, Notoungulata) with Emphases in Basicranial and Auditory Region by Martínez, Gastón, Dozo, María Teresa, Gelfo, Javier N, Marani, Hernán

“…"Notohippidae" is a probably paraphyletic family of medium sized notoungulates with complete dentition and early tendency to hypsodonty. They have been…”
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New Antarctic findings of Upper Cretaceous and lower Eocene loons (Aves: Gaviiformes) by Acosta Hospitaleche, Carolina, Gelfo, Javier N.

“…The new remains of Gaviiformes collected from the Maastrichtian Sandwich Bluff Member (López de Bertodano Formation in Vega Island), the Maastrichtian Klb 9…”
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Late Campanian-Early Maastrichtian Vertebrates From The James Ross Basin, West Antarctica: Updated Synthesis, Biostratigraphy, And Paleobiogeography by Reguero, Marcelo A, Gasparini, Zulma, Olivero, Eduardo B, Coria, Rodolfo A, Fernández, Marta S, O Gorman, José P, Gouiric-Cavalli, Soledad, Hospitaleche, Carolina Acosta, Bona, Paula, Iglesias, Ari, Gelfo, Javier N, Raffi, María E, Moly, Juan José, Santillana, Sergio N, Cárdenas, Magalí

“…The Snow Hill Island Formation (SHIF; late Campanian - early Maastrichtian) crops out in the northeast of the Antarctic Peninsula and constitutes the basal…”
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Splendid Innovation: The Extinct South American Native Ungulates by Croft, Darin A, Gelfo, Javier N, López, Guillermo M

“…A remarkable diversity of plant-eating mammals known as South American native ungulates (SANUs) flourished in South America for most of the Cenozoic. Although…”
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Ancient proteins resolve the evolutionary history of Darwin’s South American ungulates by Welker, Frido, Collins, Matthew J., Thomas, Jessica A., Wadsley, Marc, Brace, Selina, Cappellini, Enrico, Turvey, Samuel T., Reguero, Marcelo, Gelfo, Javier N., Kramarz, Alejandro, Burger, Joachim, Thomas-Oates, Jane, Ashford, David A., Ashton, Peter D., Rowsell, Keri, Porter, Duncan M., Kessler, Benedikt, Fischer, Roman, Baessmann, Carsten, Kaspar, Stephanie, Olsen, Jesper V., Kiley, Patrick, Elliott, James A., Kelstrup, Christian D., Mullin, Victoria, Hofreiter, Michael, Willerslev, Eske, Hublin, Jean-Jacques, Orlando, Ludovic, Barnes, Ian, MacPhee, Ross D. E.

“…Protein sequences preserved in two Quaternary taxa, Macrauchenia and Toxodon , resolve the evolutionary history of South American native ungulates. South…”
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Taphonomy of two Holocene penguin taphocoenoses in Potter Peninsula, South Shetland Islands, Antarctica by Acosta Hospitaleche, Carolina, Gelfo, Javier N., Quaggia, Bruno, Reguero, Marcelo

“…Abandoned rookeries belonging to any of the Pygoscelis species are very particular taphocoenosis, usually preserved due to the accumulations of bones, pebbles,…”
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The First Southern Hemisphere Occurrence of the Extinct Cretaceous Sclerorhynchoid Sawfish Ptychotrygon (Chondrichthyes, Batoidea), with a Review of Ptychotrygon Taxonomy by Begat, Arnaud, Kriwet, Jürgen, Gelfo, Javier N., Cavalli, Soledad Gouiric, Schultz, Julia A., Martin, Thomas

“…A new extinct sclerorhynchoid sawfish, Ptychotrygon ameghinorum sp. nov., is presented here based on abundant isolated teeth and some dermal denticles, which…”
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Procellariiform remains and a new species from the latest Eocene of Antarctica by Acosta Hospitaleche, Carolina, Gelfo, Javier N.

“…New remains from the La Meseta (Thanetian - Lutetian) and Submeseta (Lutetian - Rupelian) formations (Seymour Island, Antarctica) are tentatively assigned to…”
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Phylogenetic relationships and palaeobiology of a new xenungulate (Mammalia: Eutheria) from the Palaeogene of Argentina by Gelfo, Javier N., García-López, Daniel A., Bergqvist, Lilian P.

“…Xenungulates are a peculiar group of bilophodont ungulates, widespread over South America during the Paleocene and early Eocene. Here we describe, illustrate…”
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New Metatherian Mammal from the Early Eocene of Antarctica by Goin, Francisco J., Vieytes, Emma C., Gelfo, Javier N., Chornogubsky, Laura, Zimicz, Ana N., Reguero, Marcelo A.

“…A new Paleogene metatherian from locality IAA 1/90, Marambio (Seymour) Island in the Antarctic Peninsula is described. Pujatodon ektopos , gen. et sp. nov., is…”
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Early steps in the radiation of notoungulate mammals in southern South America: A new henricosborniid from the Eocene of Patagonia by Nicolás Bauzá, Javier N. Gelfo, Guillermo M. López

“…Here we describe a new notoungulate mammal from the early Eocene (Itaboraian SALMA) of Chubut, Argentinian Patagonia, from the localities of Las Flores and Las…”
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BIOCHRONOLOGICAL RELATIONSHIPS OF THE EARLIEST SOUTH AMERICAN PALEOGENE MAMMALIAN FAUNAS by GELFO, JAVIER N., GOIN, FRANCISCO J., WOODBURNE, MICHAEL O., MUIZON, CHRISTIAN DE

“…:  The oldest Cenozoic mammalian assemblages in South America have been recovered from levels of the Hansen Member of the Salamanca Formation, Punta Peligro…”
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The oldest mammals from Antarctica, early Eocene of the La Meseta Formation, Seymour Island by Gelfo, Javier N., Mörs, Thomas, Lorente, Malena, López, Guillermo M., Reguero, Marcelo, O'Regan, Hannah

“…New fossil mammals found at the base of Acantilados II Allomember of the La Meseta Formation, from the early Eocene (Ypresian) of Seymour Island, represent the…”
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A new toxodont (Mammalia, Panperissodactyla, Notoungulata) from the Oligocene of Patagonia, Argentina, and systematic considerations on the paraphyletic 'Notohippidae' by Martínez, Gastón, Dozo, María T., Gelfo, Javier N., Ciancio, Martín R., González-José, Rolando

“…Notoungulates were the most diverse group of South American native ungulates during the Cenozoic. They ranged from small rodent-like to heavy rhino-like forms…”
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U-Pb zircon constraints on the age of the Cretaceous Mata Amarilla Formation, Southern Patagonia, Argentina: its relationship with the evolution of the Austral Basin by Varela, Augusto N., Poiré, Daniel G., Martin, Thomas, Gerdes, Axel, Goin, Francisco J., Gelfo, Javier N., Hoffmann, Simone

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A New Cramaucheniinae (Litopterna, Macraucheniidae) from the Early Miocene of Patagonia, Argentina by Cheme-Arriaga, Lucas, Dozo, María Teresa, Gelfo, Javier N

“…A new litoptern Cramaucheniinae species, Pternoconius bondi, sp. nov., from Colhuehuapian levels of the Sarmiento Formation in Bajada del Diablo (Chubut,…”
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A New Didolodontid Mammal from the Late Paleocene—Earliest Eocene of Laguna Umayo, Peru by Gelfo, Javier N., Sigé, Bernard

“…A previously undescribed tooth from the Muñani Formation at the Laguna Umayo locality, Peru, represents the new didolodontid Umayodus raimondi gen. et sp…”
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