Morphological evolution is heterogeneous and analytical methods should take this into
consideration in order to produce reliable inferences, both for phylogenetic analyses and for …

My research illuminates new aspects of the ecological and evolutionary controls on spe-cies
invasions of new ecosystems and of the consequences of species invasions for their new …

Living sloths represent two distinct lineages of small-sized mammals that independently
evolved 43 arboreality from terrestrial ancestors. The six extant species are the survivors of …

Chelonioidea (sea turtles) are a group where available morphological evidence for crown
group relationships are incongruent with those established using molecular data. However …

Understanding the general pattern of how a clade evolves over time is a central aim of
palaeontology and evolutionary biology. The observation that the tree of life is asymmetric in …

Living sloths represent two distinct lineages of small-sized mammals that independently
evolved 43 arboreality from terrestrial ancestors. The six extant species are the survivors of …

Here we describe a new genus and species of giant ground sloth, Xibalbaonyx oviceps
(Megalonychidae, Xenarthra), from the drowned cave system of the northeastern Yucatán …

[ES] Tradicionalmente, se ha considerado que la formación del istmo de Panamá (durante
el Plioceno hace 3 Ma) facilitó el movimiento de especies entre Sudamérica y Norteamérica …

The pisiform is unique among carpal bones because it is the only one to form a secondary
center of ossification and growth plate, a configuration that is present across nearly all …

Although many biodiversity studies focus on living species, the vast majority of species that
ever lived are long extinct. It is therefore crucial to combine data from both living and fossil …