Search Results - "Toledo, Nestor"

The dermal armor of mylodontid sloths (Mammalia, Xenarthra) from Cueva del Milodón (Última Esperanza, Chile) by Toledo, Néstor, Boscaini, Alberto, Pérez, Leandro Martín

“…Dermal ossifications (osteoderms, dermal ossicles, osteoscutes) appear independently in various tetrapod lineages. In mammals, however, dermal ossifications…”
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New Well-Preserved Materials of Glossotherium chapadmalense (Xenarthra, Mylodontidae) from the Pliocene of Argentina Shed Light on the Origin and Evolution of the Genus by Boscaini, Alberto, Toledo, Néstor, Pérez, Leandro M., Taglioretti, Matías L., Mcafee, Robert K.

“…Fossil remains of extinct mylodontine sloths have been discovered in numerous localities throughout the American supercontinent, but knowledge of them is still…”
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Radiocarbon dates of fossil record assigned to mylodontids (Xenarthra - Folivora) found in Cueva del Milodón, Chile by Pérez, Leandro M., Toledo, Néstor, Mari, Florencia, Echeverría, Ignacio, Tonni, Eduardo P., Toledo, Marcelo J.

“…The Cueva del Milodón (CdM, southern Chile), has been explored repeatedly since the end of the 19th century. Many institutions in the world house specimens…”
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Comparative osteology and functional morphology of the forelimb of Cyonasua (Mammalia, Procyonidae), the first South American carnivoran by Tarquini, Juliana, Morgan, Cecilia C., Toledo, Néstor, Soibelzon, Leopoldo H.

“…Extant procyonids only inhabit the Americas and are represented by six genera (Procyon, Nasua, Nasuella, Bassaricyon, Potos, and Bassariscus); all of them,…”
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The earliest well-documented occurrence of sexual dimorphism in extinct sloths: evolutionary and palaeoecological insights by Boscaini, Alberto, Gaudin, Timothy J, Toledo, Néstor, Quispe, Bernardino Mamani, Antoine, Pierre-Olivier, Pujos, François

“…Abstract Sexual dimorphism (SD) is extremely common in species that have reproductive roles segregated into separate sexes, and it has been recognized in…”
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Neuroanatomy of a diplodocid sauropod dinosaur from the Lower Cretaceous of Patagonia, Argentina by Garderes, Juan Pablo, Gallina, Pablo Ariel, Whitlock, John Andrew, Toledo, Néstor

“…Diplodocid neuroanatomy is known from four Late Jurassic forms from North America and Africa. Recently, a partial braincase of a diplodocid sauropod (MMCh-Pv-…”
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Exploration of the morphology and functional implications of the forelimb in bats (Mammalia, Chiroptera) from the Neotropical region by Gaudioso, Pablo J., Pérez, M. Julieta, Gamboa Alurralde, Santiago, Toledo, Néstor, Díaz, M. Mónica

“…The active flight allows bats to explore different ecological niches, resulting in diverse feeding habits and great morphological variation. Studies using…”
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Advantages and Limitations in the Use of Extant Xenarthrans (Mammalia) as Morphological Models for Paleobiological Reconstruction by Vizcaíno, Sergio F., Toledo, Néstor, Bargo, M. Susana

“…Extant species of Xenarthra represent a severely restricted sample of the total diversity achieved by the group. Given their shared history, the extant…”
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Phylogenetic signal analysis in the basicranium of Ursidae (Carnivora, Mammalia) by Arnaudo, María Eugenia, Toledo, Néstor, Soibelzon, Leopoldo, Bona, Paula

“…Ursidae is a monophyletic group comprised of three subfamilies: Tremarctinae, Ursinae and Ailuropodinae, all of which have a rich geographical distribution…”
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Body mass estimation for † Cyonasua (Procyonidae, Carnivora) and related taxa based on postcranial skeleton by Tarquini, Juliana, Toledo, Néstor, Soibelzon, Leopoldo H., Morgan, Cecilia C.

“…Procyonidae were the first northern placental carnivorans that reached the Neotropics. They are represented by two extinct genera: [dagger]Cyonasua and…”
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The Concept of a Pedolateral Pes Revisited: The Giant Sloths Megatherium and Eremotherium (Xenarthra, Folivora, Megatheriinae) as a Case Study by Toledo, Néstor, De Iuliis, Gerardo, Vizcaíno, Sergio F., Bargo, M. Susana

“…The concept of a pedolateral pes in many extinct sloths began effectively with Owen’s mid-nineteenth century descriptions of Glossotherium and Megatherium …”
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Muscular reconstruction and functional morphology of the hind limb of santacrucian (Early Miocene) sloths (Xenarthra, Folivora) of Patagonia by Toledo, Néstor, Bargo, M. Susana, Vizcaíno, Sergio F.

“…ABSTRACT This article presents a morphofunctional analysis of the hind limb of Santacrucian (Early Miocene) sloths from southernmost Patagonia (Argentina)…”
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Muscular Reconstruction and Functional Morphology of the Forelimb of Early Miocene Sloths (Xenarthra, Folivora) of Patagonia by Toledo, Néstor, Bargo, M. Susana, Vizcaíno, Sergio F.

“…Early Miocene sloths are represented by a diversity of forms ranging from 38 to 95 kg, being registered mainly from Santacrucian Age deposits in southern‐most…”
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Mass Estimation of Santacrucian Sloths from the Early Miocene Santa Cruz Formation of Patagonia, Argentina by Toledo, Néstor, Cassini, Guillermo Hernán, Vizcaíno, Sergio Fabián, Bargo, M. Susana

“…Miocene deposits of the Santa Cruz Formation, Patagonia, comprise a diverse and excellently preserved vertebrate fauna, allowing detailed paleobiological and…”
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An Ecomorphological Approach to Craniomandibular Integration in Neotropical Deer by Cassini, Guillermo H., Toledo, Néstor

“…South American cervids have a relatively recent evolutionary history in the Neotropics. Present taxonomical richness includes six genera and 17 species grouped…”
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Concurrent evidence from ichnology and anatomy: the scelidotheriine ground sloths (Xenarthra, Folivora) from the Pleistocene of Argentina by Toledo, Nestor, Arregui, Mariano

“…In the fossil record of South America, both ground sloths and their tracks are well known. However, most tracks described were assignable to megatherians and…”
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Ulna of Extant Xenarthrans: Shape, Size, and Function by Toledo, Néstor, Muñoz, Nahuel A., Cassini, Guillermo H.

“…Xenarthra, one of the major clades of placentals, comprises two different lineages (sloths and anteaters, and armadillos) with extant representatives showing…”
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Form-Function Correlation Paradigm in Mammalogy. A Tribute to Leonard B. Radinsky (1937–1985) by Cassini, Guillermo H., Toledo, Néstor, Vizcaíno, Sergio F.

“…This special issue of the Journal of Mammalian Evolution represents the proceedings from a symposium held in conjunction with the XXXI Jornadas Argentinas de…”
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Testing the hypothesis of an impoverished predator guild in the Early Miocene ecosystems of Patagonia: An analysis of meat availability and competition intensity among carnivores by Rodríguez-Gómez, Guillermo, Cassini, Guillermo H., Palmqvist, Paul, Bargo, M. Susana, Toledo, Néstor, Martín-González, Jesús A., Muñoz, Nahuel A., Kay, Richard F., Vizcaíno, Sergio F.

“…The lower Miocene Santa Cruz Formation (dated to ~18–16 Ma) of Southern Patagonia, Argentina, preserves rich vertebrate faunas, which are representative of…”
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CONCEPTUAL CHALLENGES FOR THE PALEOECOLOGICAL RECONSTRUCTION OF THE PLEISTOCENE PAMPEAN MEGAFAUNA AND THE CONSEQUENCES OF ITS EXTINCTION by Sergio Fabián Vizcaíno, M. Susana Bargo, Néstor Toledo, Gerardo De Iuliis

“…The Pleistocene Pampean Megafauna (PPM) may be considered as the assemblage consisting mainly of large mammals (i.e., bodymass ≥ 45 kg) that inhabited what is…”
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