Listar por autor "Pérez-Claros, Juan Antonio"
Mostrando ítems 1-20 de 20
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A comparison of the taphonomic attributes of quarries VM3 and VM4 of the Early Pleistocene site of Venta Micena (Baza Basin, SE Spain)
Palmqvist-Barrena, Carlos Paul
; Espigares-Ortiz, María Patrocinio; Pérez-Claros, Juan Antonio; Figueirido-Castillo, Francisco Borja; Guerra-Merchán, Antonio; Ros-Montoya, Sergio; García-Aguilar, José Manuel; Granados, Alejandro; Rodríguez-Gómez, Guillermo; Martínez-Navarro, Bienvenido[et al.] (2022)
The site of Venta Micena (Guadix-Baza Depression, SE Spain), a rich Fossil-Lagerstätten of late Early Pleistocene age (1.6-1.5 Ma), preserves a diverse assemblage of large mammals. Up to date, >24,000 skeletal remains have ... -
A morphometric characterization of cranial shape in terrestrial carnivorans based on fourier analysis
Pérez-Claros, Juan Antonio; Martín-Serra, Alberto; Figueirido-Castillo, Francisco Borja; Janis, Christine Marie; Palmqvist-Barrena, Carlos Paul (2013-11-08)
A number of studies have shown that skull morphology reflects the ecological adaptations of terrestrial carnivores as well as their phylogenetic legacy. Here we use Fourier shape analysis for describing the dorsal outline ... -
Alometrías intertaxónicas y ontogenéticas entre el área del septo y el volumen del fragmocono en cefalopodos con concha espiral actuales y extintos
Pérez-Claros, Juan Antonio; Palmqvist-Barrena, Carlos Paul; Figueirido-Castillo, Francisco Borja; Olóriz, F.
La interpretación funcional del replegamiento periférico de los septos de los ammonoideos constituye todo un reto dada la inexistencia de representantes actuales del grupo y, por consiguiente, la imposibilidad de ... -
Dataset for sixty-six million years along the road of mammalian ecomorphological specialization.
Figueirido-Castillo, Francisco Borja; Palmqvist-Barrena, Carlos Paul; Pérez-Claros, Juan Antonio; Janis, Christine Marie (Universidad de Málaga, 2019-06-10)
La base de datos hace referencia al artículo: Figueirido, B., Palmqvist, P., Pérez-Claros, J. A., & Janis, C. M. (2019). Sixty-six million years along the road of mammalian ecomorphological specialization. Proceedings of ... -
Déjà vu: a reappraisal of the taphonomy of quarry VM4 of the Early Pleistocene site of Venta Micena (Baza Basin, SE Spain)
Palmqvist-Barrena, Carlos Paul; Espigares-Ortiz, María Patrocinio; Pérez-Claros, Juan Antonio; Figueirido-Castillo, Francisco Borja; Guerra-Merchán, Antonio; Ros-Montoya, Sergio; Rodríguez-Gómez, Guillermo; García-Aguilar, José Manuel; Granados, Alejandro; Martínez-Navarro, Bienvenido[et al.] (Nature Research, 2022)
Venta Micena, an Early Pleistocene site of the Baza Basin (SE Spain), preserves a rich and diverse assemblage of large mammals. VM3, the main excavation quarry of the site, has been interpreted as a den of the giant hyaena ... -
Déjà vu: on the use of meat resources by sabretooth cats, hominins, and hyaenas in the Early Pleistocene site of Fuente Nueva 3 (Guadix‑Baza Depression, SE Spain)
Palmqvist-Barrena, Carlos Paul; Rodríguez-Gómez, Guillermo; Martínez-Navarro, Bienvenido; Espigares-Ortiz, María Patrocinio; Figueirido-Castillo, Francisco Borja; Ros-Montoya, Sergio; Guerra-Merchán, Antonio; Granados, Alejandro; García-Aguilar, José Manuel; Pérez-Claros, Juan Antonio[et al.] (Springer, 2022)
The late Early Pleistocene archaeological site of Fuente Nueva 3 (Orce, Guadix-Baza Depression, SE Spain), dated to ~1.4 Ma, provides evidence on the subsistence strategies of the first hominin population that dispersed ... -
Demythologizing Arctodus simus, the ‘short-faced’ long-legged and predaceous bear that never was
Figueirido-Castillo, Francisco Borja; Pérez-Claros, Juan Antonio; Torregrosa, Vanessa; Martín-Serra, Alberto; Palmqvist-Barrena, Carlos Paul (Taylor and Francis, 2010)
In this study, we review the previous evidence on the paleobiology of the giant, ‘short-faced’ bear Arctodus simus (Mammalia: Carnivora: Ursidae) and contribute new ecomorphological inferences on the paleobiology of this ... -
Ecomorfología y Evolución de la dentición en la familia Hyaenidae
(UMA Editorial, 2020-02-17)Desde prácticamente los inicios de la Paleontología como disciplina científica se ha ido recopilando una gran cantidad de datos referentes a los hiénidos fósiles, especialmente de su dentición, por su mayor probabilidad ... -
Epitranscriptome changes triggered by ammonium nutrition regulate the proteome response of maritime pine roots.
Ortigosa Peña, Francisco; Lobato-Fernández, César; Pérez-Claros, Juan Antonio; Ruiz-Canton, Francisco Javier; Ávila-Sáez, Concepción; Cánovas-Ramos, Francisco Miguel; Cañas-Pendón, Rafael Antonio[et al.] (Frontiers, 2022)
Epitranscriptome constitutes a gene expression checkpoint in all living organisms. Nitrogen is an essential element for plant growth and development that influences gene expression at different levels such as epigenome, ... -
Generic diversity and septal complexity in Cretaceous ammonoids. Effects of oceanic anoxic events on the ammonoid evolutionary dynamic
Pérez-Claros, Juan Antonio (2024-09-08)
En este trabajo se analiza la relación entre el número de géneros de ammonoideos planiespirales del Cretácico y su complejidad sutural estimada mediante su dimensión fractal. Se confirma que la dinámica de la diversidad ... -
Morphological adaptation of the dentition in the order carnivora involves greater transformations in the upper dentition than in the lower dentition.
Starting from a given morphology, adaptation to different lifestyles and environments involves the modification of structures through natural selection. The dentition of carnivores is a clear example of this. To quantify ... -
Patterns of morphological integration in the appendicular skeleton of mammalian carnivores.
Martín-Serra, Alberto; Figueirido-Castillo, Francisco Borja; Pérez-Claros, Juan Antonio; Palmquist-Gomes, Paul (Oxford Academic, 2015-02-01)
We investigated patterns of evolutionary integration in the appendicular skeleton of mammalian carnivores. The findings are discussed in relation to performance selection in terms of organismal function as a potential ... -
Sixty-six million years along the road of mammalian ecomorphological specialization.
Figueirido-Castillo, Francisco Borja; Palmqvist-Barrena, Carlos Paul; Pérez-Claros, Juan Antonio; Janis, Christine Marie (Proceedings of the National Academy of Sciences of the United States, 2019-06-25)
The fossil record of the large terrestrial mammals of the NorthAmerican Cenozoic has previously been quantitatively summarizedin six sequential episodes of faunal associations—“evolutionary faunas”—that correspond well ... -
Sobre el uso de los mínimos cuadrados parciales de dos bloques para el estudio de los patrones integración entre el neurocráneo y el esplacnocráneo en homínidos actuales y homínidos extintos
Pérez-Claros, Juan Antonio; Jiménez-Arenas, Juan Manuel; Palmqvist-Barrena, Carlos Paul; Martín-Serra, Alberto (2014-11-10)
Many biological structures that interact in development and/or function tend to evolve in a concertedly fashion and thus become integrated forming modules. The two most prominent modules of the mammalian cranium are the ... -
Sobre la complejidad sutural en ammonoideos planiespirales del Cretácico: mayor complejidad no es mayor especialización
Pérez-Claros, Juan Antonio (2017-10-11)
La interpretación de muchos aspectos de la paleobiología de los ammonideos está sin duda condicionada por la ausencia de representantes actuales del grupo. Una de las cuestiones más enigmáticas de los mismos es el papel ... -
Sobre las convergencias evolutivas entre los hiénidos percrocutoides y los estándares.
Los hiénidos percrocutoides, cuya distribución geográfica es exclusiva del Viejo Mundo, se engloban dentro de los géneros Percrocuta y Dinocrocuta, distribuidos temporalmente desde el Burdigaliense hasta el Messiniense ... -
Sutural complexity and body size in Cretaceous ammonoids: Macroevolutionary decoupling of correlated features
Pérez-Claros, Juan Antonio (Elsevier, 2022-04)
The relationship between sutural complexity (estimated as fractal dimension) and body size is analysed for a sample of 204 genera of Cretaceous ammonoids. Although both characteristics are significantly correlated with ... -
The giant hyena Pachycrocuta brevirostris: modelling the bone-cracking behavior of an extinct carnivore
Palmqvist-Barrena, Carlos Paul; Martínez-Navarro, Bienvenido; Pérez-Claros, Juan Antonio; Torregrosa, Vanessa; Figueirido-Castillo, Francisco Borja; Jiménez-Arenas, Juan Manuel; Espigares-Ortiz, María Patrocinio; Ros-Montoya, Sergio; De Renzi, Miquel[et al.] (ELSEVIER, 2011)
The giant hyena Pachycrocuta brevirostris was the largest bone-cracking carnivore that ever existed. With the mass of a lioness, it had massive limbs with shortened distal bones and a heavy, powerfully built mandible with ... -
The influence of skull shape modularity on internal skull structures: a 3D-Pilot study using bears
Pérez-Ramos, Alejandro; Martín-Serra, Alberto; Pérez-Claros, Juan Antonio; Schubert, Blaine W; Pastor, Juan F.; Figueirido-Castillo, Francisco Borja[et al.] (2015-10-22)
In order to capture the phenotypic variation of the internal skull structures, such as the sinuses or the brain, it is necessary to perform CT scans in a large number of specimens, which is difficult and expensive. ... -
Los yacimientos del pleistoceno y el primer poblamiento humano de Europa(II): inferencias poblacionales y estrategias de subsistencia de los homínidos
García-Aguilar, José Manuel; Espigares-Ortiz, María Patrocinio; Guerra-Merchán, Antonio; Rodríguez-Gómez, Guillermo; Jiménez-Arenas, Juan Manuel; Martínez-Navarro, Bienvenido; Ros-Montoya, Sergio; Pérez-Claros, Juan Antonio; Figueirido-Castillo, Francisco Borja[et al.]
Los yacimientos paleontológicos de Barranco León-D y Fuente Nueva-3 (cuenca de Baza, sureste de España), proporcionan las evidencias más tempranas (~1,4 Ma) de presencia humana en Europa occidental durante el Pleistoceno ...