A5029652464- Evolution and Paleontology Studies
- Pleistocene-Era Hominins and Archaeology
- Wildlife Ecology and Conservation
- Morphological variations and asymmetry
- Geology and Paleoclimatology Research
- Archaeology and ancient environmental studies
- Archaeological and Geological Studies
- Forensic Anthropology and Bioarchaeology Studies
- Bat Biology and Ecology Studies
- Isotope Analysis in Ecology
- Paleontology and Evolutionary Biology
- Primate Behavior and Ecology
- Archaeological and Historical Studies
- Geological and Geophysical Studies Worldwide
- Paleontology and Stratigraphy of Fossils
- Mediterranean and Iberian flora and fauna
- Human-Animal Interaction Studies
- Marine and environmental studies
- Cephalopods and Marine Biology
- Marine Biology and Ecology Research
- Avian ecology and behavior
- Mollusks and Parasites Studies
- Biomimetic flight and propulsion mechanisms
- Ichthyology and Marine Biology
- Comparative Animal Anatomy Studies
Universidad de Málaga
2015-2024
Universidad Complutense de Madrid
2024
Weatherford College
2024
Laboratoire Analyse, Géométrie et Applications
2022
Universitat de València
2022
New Huadu Business School
2022
Instituto Andaluz del Patrimonio Histórico
2018
Universidad Nacional de La Plata
2001
Institut Català de Paleontologia Miquel Crusafont
1995
Abstract Ecomorphological and biogeochemical (trace element, carbon, nitrogen, oxygen isotope ratios) analyses have been used for determining the dietary niches habitat preferences of large mammals from lower Pleistocene deposits at Venta Micena (Guadix-Baza Basin, Spain). The combination these two approaches takes advantage strengths overcome weakness both approaches. range δ13Ccollagen values ungulate species indicates that C3 plants were dominant in diet mammals. vary among ungulates:...
Abstract This work examines whether stepwise discriminant function analysis of a suite craniodental variables enables feeding behaviour and habitat preferences to be identified in fossil ungulates. There are several morphological features the ungulate skull, mandible dentition that well correlated with dietary adaptations, thus can used for estimating ecology extinct taxa. However, most studies have followed an univariate approach characterizing relationship between diet structure extant...
Abstract Hypsodont (i.e. high‐crowned) teeth have been interpreted as an indicator of feeding preferences and habitat selection in ungulates. For this reason, the degree hypsodonty has used for estimating diet ancient taxa palaeoenvironmental reconstructions. The goal study is to elucidate relative importance grass consumption open foraging development hypsodont teeth, using novel computer techniques knowledge discovery applied a dataset 134 species artiodactyls perissodactyls distributed...
The combined U-series/electron spin resonance (ESR) dating method was applied to nine teeth from two Early Pleistocene archaeological sites located in the Orce area (Guadix-Baza Basin, Southern Spain): Fuente Nueva-3 (FN-3) and Barranco León (BL). combination of biostratigraphy magnetostratigraphy places both between Olduvai Jaramillo subchrons (1.78–1.07 Ma). Our results highlight difficulty such old point out limits U-series/ESR based on US model. We identified several sources...
Global climate change is having profound impacts on the natural world. However, influence faunal dynamics at macroevolutionary scales remains poorly understood. In this paper we investigate of over deep time diversity patterns Cenozoic North American mammals. We use factor analysis to identify temporally correlated assemblages taxa, or major evolutionary faunas that can then study in relation climatic past 65 million years. These taxa be grouped into six consecutive associations show some...
We report quantitative paleoecologic data on the large mammal assemblage preserved in lower Pleistocene deposits at Venta Micena (Orce, Granada, southeastern Spain). Taphonomic studies show that bones were collected mainly by hyaenids, which transported and deposited them near shallow dens. Differential fragmentation of major long was produced hyaenas as a function their density marrow content. Strong selection prey carnivores—which preferentially killed juveniles, females, individuals with...
ABSTRACT In this article, hypotheses about the origin, evolution and dispersal of Megantereon are reviewed using fossil specimens included in previous comparative studies as well remains identified late Pliocene site Fonelas (Spain) early Pleistocene localities Lantian, Lingyi, Longdan, Renzidong (China), Untermassfeld (Germany). The validity two species proposed by Martínez-Navarro Palmqvist (1995), cultridens M. whitei, is evaluated tooth measurements multivariate statistical methods....
Abstract Relative warp analyses of landmarks describing cranial and mandibular shape are used for investigating patterns morphological variation among extant bears (Mammalia, Carnivora, Ursidae) indicative diet feeding behavior. These deriving inferences about the autecology two extinct species previously assumed to have had different dietary preferences, North American giant, short‐faced bear Arctodus simus Eurasian cave Ursus spelaeus . Results reveal a set shared craniodental traits...
Abstract Patterns of skull shape in Carnivora provide examples parallel and convergent evolution for similar ecomorphological adaptations. However, although most researchers report on homoplasies among hypercarnivorous taxa, evolutionary trends towards herbivory remain largely unexplored. In this study, we analyse the living herbivorous carnivorans to evaluate importance natural selection phylogenetic legacy shaping skulls these peculiar species. We quantitatively estimated variability using...
The evolutionary history of the Order Carnivora is marked by episodes iterative evolution. Although this pattern widely reported in different carnivoran families, mechanisms driving evolution skull morphology remain largely unexplored. In study we use coordinate-point extended eigenshape analysis (CP-EES) to summarize aspects shape large fissiped carnivores. Results these comparisons enable evaluation role factors constraining design. Empirical morphospaces derived from mandible anatomy show...
In this study, three-dimensional landmark-based methods of geometric morphometrics are used for estimating the influence phylogeny, allometry and locomotor performance on forelimb shape in living extinct carnivorans (Mammalia, Carnivora). The main objective is to investigate morphological convergences towards similar strategies major bones. Results indicate that both size phylogeny have strong effects anatomy all contrast, bone does not correlate taxa with maximum running speed or daily...
We investigated patterns of evolutionary integration in the appendicular skeleton mammalian carnivores. The findings are discussed relation to performance selection terms organismal function as a potential mechanism underlying integration. Interspecific shape covariation was quantified by two-block partial least-squares (2B-PLS) analysis 3D landmark data within phylogenetic context. Specifically, we compared pairs anatomically connected bones (within-limbs) and both serially homologous...
The shape of the appendicular bones in mammals usually reflects adaptations towards different locomotor abilities. However, other aspects such as body size and phylogeny also play an important role shaping bone design. We used 3D landmark-based geometric morphometrics to analyse hind limb (i.e., femur, tibia, pelvic girdle bones) living extinct terrestrial carnivorans (Mammalia, Carnivora) quantitatively investigate influence size, phylogeny, behaviour morphology these bones. investigated...
Reconstructing the conditions and circumstances under which human lineage evolved is of great interest to those disciplines related evolution, especially in fields such as archaeoecology paleoecology. A mathematical model was presented almost a decade ago aimed reconstructing populations that Pleistocene paleoecosystems could support. This followed paleosynecological perspective, being focused on: (i) estimating availability meat resources paleoecosystems, these are vital for survival; (ii)...
An ecomorphological analysis of the skeletal remains large canids, Canis (Xenocyon) falconeri and etruscus (Mammalia, Carnivora, Canidae), preserved in an assemblage mammals from lower Pleistocene site at Venta Micena (Guadix–Baza Basin, Orce, Granada, southeastern Spain) is reported. Mean body mass adult individuals was estimated to be around 10 kg for C. approximately 28 using multiple regression. A comparative study tooth measurements modem principal components discriminant function...
Abstract The correlation between body mass and both skeletal dental measures in living mammals has enabled paleontologists to obtain reliable estimates of size for extinct species, usually using log‐transformed bivariate least‐squares regression equations. Multiple regression, however, rarely been used estimating the although this technique can clearly improve predictive equations compared with those adjusted by simple regression. However, use multiple is problematical, because even...
Abstract The origin of the genus Bos is a debated issue. From ∼ 0.5 Ma until historic times, well known in Eurasian large mammal assemblages, where it represented by primigenius . This species has highly derived cranial anatomy that shows important morphological differences from other Plio-Pleistocene genera tribe Bovini such as Leptobos , Bison Proamphibos-Hemibos and Bubalus oldest clear evidence skull fragment ASB-198-1 middle Pleistocene (∼ 0.6–0.8 Ma) site Asbole (Lower Awash Valley,...