Results 31 to 40 of about 3,000 (164)

Histórico da Paleontologia no Museu Nacional

Anuário do Instituto de Geociências, 2007
The Museu Nacional founded in 1818, houses important Brazilian and foreign paleoinvertebrate, paleovertebrate and fossil plant material. This paleontological patrimony is the result of not only the first acquisitions during the 19th century, specially those made by the end of it by the Imperial Geological Commission, but also of the 20th century ...
Antonio Carlos Sequeira Fernandes, Vera Maria Medina da Fonseca, Deise Dias Rêgo Henriques   +2 more
openaire   +3 more sources

New techniques for old bones: Morphometric and diffeomorphometric analysis of the bony labyrinth of the Reilingen and Ehringsdorf Neandertals

The Anatomical Record, EarlyView.
Abstract Neandertals are known to possess very distinctive traits in their bony labyrinth morphology, such as an inferiorly positioned posterior canal and a very low number of turns in the cochlea. Hence, the inner ear has been often used to assess the Neandertal status of fragmentary fossils.
Alessandro Urciuoli, Julia Diez‐Valero, Ignacio Martínez, Rolf Quam, Brian A. Keeling, Nicole M. Webb, Mercedes Conde‐Valverde   +6 more
wiley   +1 more source

TOOTH MORPHOTYPES SHED LIGHT ON THE PALEOBIODIVERSITY OF MIDDLE TRIASSIC TERRESTRIAL VERTEBRATE ECOSYSTEMS FROM NE IBERIAN PENINSULA (SOUTHWESTERN EUROPE)

Rivista Italiana di Paleontologia e Stratigrafia
The Early to Middle Triassic is a key time interval in tetrapod evolution. After the end-Permian biotic crisis, harsh environmental conditions due to global warming and aridity persisted during the Early Triassic.
MARC RICCETTO, EUDALD MUJAL, ARNAU BOLET, CHABIER DE JAIME-SOGUERO, SOLEDAD DE ESTEBAN-TRIVIGNO, Josep Fortuny   +5 more
doaj   +1 more source

The coelurosaur theropods of the Romualdo formation, early Cretaceous (Aptian) of Brazil: Santanaraptor placidus meets Mirischia asymmetrica

The Anatomical Record, EarlyView.
Abstract The upper carbonate concretion levels of the Romualdo Formation (Aptian, Brazil) have yielded several theropod dinosaur remains, including spinosaurids and the coelurosaurs Santanaraptor placidus and Mirischia asymmetrica, the phylogenetic affinities of which are controversial.
Rafael Delcourt, Orlando Nelson Grillo, Christophe Hendrickx, Maximilian Kellermann, Max Cardoso Langer   +4 more
wiley   +1 more source

Las nuevas excavaciones (1995-2006) en el yacimiento del Mioceno final de Venta del Moro, Valencia

Estudios Geologicos, 2006
Se presenta una síntesis preliminar de la metodología y de los principales resultados obtenidos en las nuevas campañas de excavación (1995-2006) en la localidad clásica de vertebrados del Mioceno final (Turoliense superior, MN13) de Venta del Moro ...
P. Montoya, J. Morales, F. Robles, J. Abella, J. V. Benavent, M.ª D. Marín, F. J. Ruiz Sánchez   +6 more
doaj   +1 more source

Morphological variation in atlas and axis of Neotropical spiny rats (Rodentia, Echimyidae)

The Anatomical Record, EarlyView.
Abstract The unique morphologies of the first two cervical vertebrae, the atlas and axis, represent a significant innovation in mammalian evolution. These structures support the weight of the head and enable intricate movements of the head and neck.
Thomas Furtado da Silva Netto, João Felipe Leal Kaiuca, Adriana Itatí Olivares, William Corrêa Tavares   +3 more
wiley   +1 more source

Sobre la identidad del fragmento craneal atribuido a Homo sp. en Venta Mlcena (Orce Granada)

Estudios Geologicos, 1987
Se analiza la morfología de la cara interna del fragmento craneal de Venta Micena atribuido inicialmente al género Homo. Se detecta la presencia de la sutura coronal a cuatro centímetros del punto lambda.
J. Agustí, S. Moyá-Solá
doaj   +1 more source

Unfused transverse foramen of the atlas vertebra in the Neandertal lineage fossils

The Anatomical Record, EarlyView.
Abstract In anatomically modern humans, the atlas can display an unfused transverse foramen (UTF) but currently the presence of UTF in the Neandertal lineage is uncertain due to a scarcity of prevalence studies and no exhaustive record of its presence throughout the entire hominin fossil record.
Asier Gómez‐Olivencia, Mikel Arlegi, Juan José Valenzuela‐Fuenzalida, Mathias Orellana‐Donoso, Juan Luis Arsuaga, Juan A. Sanchis‐Gimeno   +5 more
wiley   +1 more source

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

The 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, Matheus P. S. Rocha, Francisco P. Lima‐Filho, Aline M. Ghilardi   +3 more
wiley   +1 more source

Programas de Investigación en Paleobiología y Teoría evolutiva

Arbor: Ciencia, Pensamiento y Cultura, 2002
Se presenta una discusión del papel actual de la paleontología en el estudio de la evolución orgánica. Diferentes descubrimientos, tanto teóricos como empíricos, están cuestionando algunos de los principios básicos del paradigma neodarvinista.
Antonio Rosas González
doaj   +1 more source