Results 71 to 80 of about 22,500 (217)

Què és un dinosaure? Idees i usos del concepte en diferents àmbits educatius

Enseñanza de las Ciencias, 2015
La tesi doctoral Què és un dinosaure? Idees i usos del concepte en diferents àmbits educatius té com a finalitat realitzar un diagnòstic del concepte dinosaure atenent diversos aspectes i marcs conceptuals dins de la Didàctica de les Ciències ...
Luis Mampel Laboira
doaj   +1 more source

Análisis morfométrico del surco nasal en aves [PDF]

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

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

Journal 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, Emily Keeble, Yuting Lin, John R. Hutchinson   +3 more
wiley   +1 more source

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

, 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, Goin, Francisco Javier, Gouiric-Cavalli, Soledad, Poiré, Daniel Gustavo   +3 more
core  

Microbially generated ferruginous crusts: A potential biosignature of continental input in coastal settings

Sedimentology, EarlyView.
ABSTRACT Thin ferruginous sandy crusts are common on top of sandstone beds in the Early Permian post‐glacial deposits of the Paraná Basin in southern Brazil. These crusts usually preserve wrinkle structures, suggesting that they might be a product of microbial mediation.
Patrícia Weschenfelder, Renata Guimarães Netto, Alisson Klayton Martins   +2 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

Acaciapollenites acaciae sp. nov., una nueva políade de mimosoidea del neógeno, en la Cuenca del Colorado, Argentina [PDF]

, 2006
Fossil mimosoid polyads have been recently recovered from Neogene deposits in the Colorado Basin, Argentina, and the new species Acaciapollenites acaciae sp. nov.
Caccavari, Marta Alicia, Guler, Maria Veronica   +1 more
core  

Whole‐bone shape of hominoid manual proximal phalanges

The Anatomical Record, Volume 309, Issue 2, Page 245-270, February 2026.
Abstract Functional morphologists have long noted that skeletal adaptations in primate phalanges reflect locomotor behavior. While most studies have successfully used two‐dimensional measurements to quantify general features of phalanx shape, a whole‐bone three‐dimensional analysis may better capture more subtle aspects of phalanx morphology that have ...
Deanna M. Goldstein, Christine M. Harper, Megan Solís, Caley M. Orr, Sergio Almécija, Matthew W. Tocheri, Tea Jashashvili, Biren A. Patel   +7 more
wiley   +1 more source

Trabajando el concepto de fósil en el segundo ciclo de Educación Primaria: estudio piloto en un centro escolar granadino

Geogaceta
Se presenta una investigación educativa en la que se trabaja el concepto de fósil con estudiantes del segundo ciclo de Educación Primaria en un centro escolar granadino.
Sila Pla-Pueyo, Marina Pérez Bautista
doaj   +1 more source

Morphology and paleoecology of a hybodontiform with serrated teeth, Priohybodus arambourgi, from the Late Jurassic of northeastern Brazil

The Anatomical Record, Volume 309, Issue 1, Page 5-32, January 2026.
Abstract Hybodontiformes was a diverse, successful, and important group of shark‐like chondrichthyans known from a variety of ecosystems. Some representatives of the order had a wide palaeogeographic distribution, as is the case with Priohybodus arambourgi. With a multicuspidate crown, P. arambourgi was the first hybodontiform to develop fully serrated
Estevan Eltink, Kelly Roberta da Silva, Marco Aurélio Gallo de França, Débora Melo Ferrer de Morais, Matías Soto, Christopher J. Duffin   +5 more
wiley   +1 more source