Neste episódio, Gabi volta aos microfones, junto com seu coautor Tiago para falarem com o André sobre o artigo que publicaram e os entendimentos sobre esses répteis interessantes (ou horripilantes) qu...

Caudal vertebrae of caenophidian snakes are characterized by the presence of paired haemapophyses–a pattern observed from the earliest-diverging acrochordid lineage to the most derived viperids, and ...

One of the best-preserved early snake fossils, the Tametara mirim fossil dates back around 75 to 85 million years to the Cretaceous Period.

A well-preserved fossil snake from the Late Cretaceous of Brazil shows early ecological and brain shape disparity in the group.

Batizada de Tametara mirim, espécie tinha adaptações para viver debaixo da terra e está entre linhagens mais antigas conhecidas desse grupo.

A well-preserved fossil snake from the Late Cretaceous of Brazil shows early ecological and brain shape disparity in the group.

A well-preserved fossil snake from the Late Cretaceous of Brazil shows early ecological and brain shape disparity in the group.

Morphological data are essential for reconstructing evolutionary histories, particularly for fossil taxa, as they represent the primary source of information for integrating extinct lineages into ...

Accurate estimation of speciation ( $$\lambda $$ λ ) and extinction ( $$\mu $$ μ ) rates from phylogenetic trees is central to studies of diversification, yet it remains unclear whether commonly used ...

ALT: a hamster is wrapped in a blanket and holding a piece of orange

Harvard researchers reveal the earliest known Chelicerata in a new study published in Nature. The 500-million-year-old fossil, named Megachelicerax cousteaui, provides unequivocal evidence of chelicer...

Therapsids are early-diverging synapsids that thrived during the Permian and Triassic periods, and ultimately gave rise to mammals. They include six major groups, which already exhibited considerable ...

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Claims for a Triassic-aged crown lizard merit detailed reanalysis, the results of which find that Cryptovaranoides is not only not a lizard, but is a more distantly related diapsid reptile.

The Department of Biology was established in 2010 through the merger of the Departments of Ecology, Cell and Organism Biology, Biological Undergraduate Education, and the Biological Museums. The depar

While species descriptions are rooted in biological diversity, their timing and patterns have also been influenced by historical, socioeconomic, and perceptual biases. Among these, body size has long...

Squamates (lizards, including snakes) are the most diverse group of terrestrial vertebrates on Earth today and have an evolutionary history dating back to at least the Middle Triassic (ca. 242 Mya). D...

The interplay between speciation and extinction rates shapes clade diversity dynamics. Using a novel phylogenetic model that includes living and fossil lineages, the authors estimate speciation and ex...

The School of Environmental and Biological Sciences (SEBS) and the Department of Ecology,Evolution and Natural Resources at Rutgers University-New Brunswick invite applicants for atenure-track positio...

Abstract. Understanding the rate of phenotypic evolution can reveal fundamental aspects of organismal evolutionary trajectories. Hence, several studies hav

The announcement comes months later than usual, leaving many would-be applicants stranded

Job Title: Assistant Professor, Tenure-Track, Department of Biology, University of San Francisco Job Summary: The Department of Biology at the University of San Francisco invites applications for a fu...

Taphonomic megabiases constrain phylogenetic information in the squamate fossil record

Squamates (lizards, including snakes) are the most diverse group of terrestrial vertebrates on Earth today and have an evolutionary history dating back to at least the Middle Triassic (ca. 242 Mya). D...

Performs automated morphological character partitioning for phylogenetic analyses and analyze macroevolutionary parameter outputs from clock (time-calibrated) Bayesian inference analyses, following co...

Abstract. Dicynodonts were a globally distributed group of herbivorous synapsids that first appeared during the middle Permian (Guadalupian) and survived t