Results 61 to 70 of about 21,948 (213)

LA MODALIDAD EPISTÉMICA ASERTIVA COMO RECURSO RETÓRICO EN NOTICIAS CIENTÍFICAS: EL CASO DEL HALLAZGO PALEONTOLÓGICO DEL HOMBRE DE ORCE

open access: yesRevista de Lingüística y Lenguas Aplicadas, 2007
<p class="MsoNormal">Este art&iacute;culo analiza la modalidad epist&eacute;mica asertiva (expresi&oacute;n de la certeza) en un conjunto de noticias cient&iacute;ficas sobre el hallazgo paleontol&oacute;gico del llamado Hombre ...
José Antonio Díaz Rojo
doaj   +1 more source

Macraucheniidae y Proterotheriidae (Mammalia, Litopterna) de Quebrada Fiera (Oligoceno tardío), Mendoza, Argentina [PDF]

open access: yes, 2019
In this contribution we present new specimens of Litopterna recovered during the last decade in Quebrada Fiera (Mendoza Province, Argentina), whose fossiliferous sediments, currently recognized as the base of Agua de la Piedra Formation, are assignable ...
Cerdeño Serrano, Maria Esperanza   +2 more
core   +1 more source

Histology and fossil diagenesis of a pterosaur tooth from the Crato Formation (Lower Cretaceous of Brazil)

open access: yesThe Anatomical Record, EarlyView.
Abstract Pterosaur dental biology remains poorly understood despite its importance for comprehending feeding strategies and flight adaptations. Here, we present the first comprehensive histological analysis of an ornithocheiriform pterosaur tooth from the Lower Cretaceous Crato Formation (Santana Group, Northeast Brazil).
Tito Aureliano   +3 more
wiley   +1 more source

Análisis morfométrico del surco nasal en aves [PDF]

open access: yes, 2010
Fil: Ibáñez, Lucía Mariel. Campus Universitario Florencio Varela, División Zoología Vertebrados, Sección Ornitología; ArgentinaFil: Tambussi, Claudia Patricia.
Acosta Hospitaleche, Carolina   +2 more
core  

The sensorial function of the girdle of the Polyplacophora [PDF]

open access: yes, 2016
The sensorial function of the girdle of the Polyplacophora Carmen Salas1, Antonio G. Checa2,3, Michael J. Vendrasco2 1Depto. Biología Animal, Facultad de Ciencias, Universidad de Málaga, 29071 Málaga, Spain; 2Departamento de Estratigrafía y ...
Checa, Antonio   +2 more
core   +1 more source

Growth dynamics, skeletochronology, and histovariability of the theropod dinosaur Berthasaura leopoldinae

open access: yesThe Anatomical Record, EarlyView.
Osteohistological sampling on different bones of theropod dinosaur documents discrepant age record, growth, and metabolism. This could result unprecise paleobiological inferences if samplings are based on single bones. However, multi‐bone sampling can attenuate these discrepancies, helping to infer growth dynamics and physiology of these extinct ...
Geovane Alves de Souza   +3 more
wiley   +1 more source

Cowrie snails (Mollusca, gastropoda) in Tell el-Ghaba, a third intermediate to late period settlement in North Sinai, Egypt : comments on their use [PDF]

open access: yes, 2015
Fil: Cione, Alberto Luis. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Paleontología Vertebrados; ArgentinaFil: Pérez, Leandro Martín. Universidad Nacional de La Plata.
Bacquerisse, Cristina   +2 more
core  

FaXToR: the hard X‐ray micro‐tomography beamline at the Spanish synchrotron ALBA

open access: yesJournal of Synchrotron Radiation, EarlyView.
The Spanish synchrotron ALBA has recently inaugurated BL31‐FaXToR, a beamline for hard X‐ray micro‐tomography. The design, performance and scientific program of the beamline are described.FaXToR is the first hard X‐ray imaging beamline built and commissioned at the Spanish synchrotron light source ALBA, and therefore the start of user operation marks ...
Alessandra Patera   +8 more
wiley   +1 more source

Atlantocerus, a new genus of lungfish from the upper cretaceous of South America and Africa [PDF]

open access: yes, 2007
Fil: Cione, Alberto Luis. Departamento Paleontología Vertebrados, Museo de La PlataFil: Gouiric-Cavalli, Soledad. Departamento Paleontología Vertebrados, Museo de La PlataFil: Goin, Francisco Javier.
Cione, Alberto Luis   +3 more
core  

Hindlimb functional morphology and locomotor biomechanics of the small Late Triassic pseudosuchian reptile Gracilisuchus stipanicicorum (Archosauria: Gracilisuchidae)

open access: yesJournal of Anatomy, EarlyView.
A three‐dimensional biomechanical model of the musculoskeletal system is used to analyse the potential locomotor functions of the small (~1 kg) Late Triassic archosaurian reptile Gracilisuchus stipanicicorum. The study finds that, potentially like the ancestral archosaur, this taxon was probably quadrupedal, plantigrade and neither strongly sprawling ...
Agustina Lecuona   +3 more
wiley   +1 more source

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