Results 21 to 30 of about 7,148 (128)

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

Aspectos geológicos y geodinámicos de flujos aluvionales en la quebrada Jicamarca y análisis de la vulnerabilidad para la implementación de un Sistema de Alerta Temprana (SAT) en el centro poblado Cajamarquilla

Revista del Instituto de Investigación de la Facultad de Minas, Metalurgia y Ciencias Geográficas, 2016
El estudio de los flujos aluvionales ocurridos en la quebrada Jicamarca se realizó con la finalidad de diseñar e implementar un Sistema de Alerta Temprana (SAT) basado en el cartografiado geológico y geodinámico de los depósitos y materiales encontrados ...
Cristhian Chiroque, Héctor Lavado
doaj   +1 more source

Escribiendo el “tiempo profundo”: Ficciones fundacionales y el Antropoceno

Orbis Tertius, 2020
Desde el descubrimiento del tiempo ‘profundo’, geológico, la imaginación literaria moderna en el siglo XIX se ha apropiado del pasado lejano de la historia de la tierra para articularlo con la historia moderna.
Jörg Dünne
doaj   +1 more source

La perspectiva del Antropoceno: Una mirada geológica al cambio climático

Mètode Science Studies Journal: Annual Review, 2022
La división del tiempo geológico más reciente está basada en eventos de carácter climático provocados por variaciones en la órbita y el eje de rotación de la Tierra a escala de miles de años.
Alejandro Cearreta
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

Aplicación de las nuevas tecnologías a la enseñanza de la Geología

Arbor: Ciencia, Pensamiento y Cultura, 2011
En este trabajo se presentan nuevas estrategias y metodologías de enseñanza y aprendizaje, y tareas de los estudiantes implementadas en asignaturas relacionadas con la Geología de la E.T.S.I. Minas de Madrid. El principal objetivo es acercar los aspectos
José Eugenio Ortiz, Trinidad de Torres, Isabel Arribas, Domingo Martín-Sánchez   +3 more
doaj   +1 more source

Patterns of spinal motion, kinematic spaces and the land‐to‐sea transition in carnivorans

The Anatomical Record, EarlyView.
Using 3D reconstructions, we quantify intervertebral joint mobility to investigate how cervical, thoracic, and lumbar vertebral regions evolved distinct kinematic roles in pinnipeds. The findings reveal lineage‐specific adaptations for swimming and highlight the functional significance of vertebral joint flexibility in ecological transitions.
Juan Miguel Esteban, Alberto Martín‐Serra, Alejandro Pérez‐Ramos, Borja Figueirido   +3 more
wiley   +1 more source

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

The 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, Marina Bento Soares, Luiz Carlos Weinschütz, Alexander Wilhelm Armin Kellner   +3 more
wiley   +1 more source

An unusual titanosaur axis from the Upper Cretaceous of Brazil and its significance for sauropod anatomy and systematics

The Anatomical Record, EarlyView.
Abstract The Upper Cretaceous São José do Rio Preto Formation (Bauru Group, southeastern Brazil) has yielded a fragmentary but taxonomically diverse record of titanosaur sauropods, although elements from cervical series remain scarce. Here, we describe a nearly complete sauropod axis from the Vila Ventura Paleontological Area, representing an uncommon ...
Bruno A. Navarro, Jeffrey A. Wilson Mantilla, Jhonata H. A. Martins, Fabiano V. Iori, Leonardo S. Paschoa, Alberto B. Carvalho, Joseli M. Piranha, Hussam Zaher   +7 more
wiley   +1 more source

Evolutionary radiation of large‐bodied gorgonopsians from the lower Abrahamskraal formation of South Africa

The Anatomical Record, EarlyView.
Abstract The middle Permian represents a critical interval in therapsid evolution, when gorgonopsians emerged as some of the first specialized apex predators within terrestrial ecosystems. Despite their significance, the early diversification of Gorgonopsia in Gondwana remains poorly understood due to scarcity and fragmentary material.
Zanildo Macungo, Ricardo Araújo, Bruce S. Rubidge, Michael O. Day, Kathleen N. Dollman, Julien Benoit   +5 more
wiley   +1 more source