Phylogenetics

Just out | Paleogenomics of echinoids reveals an ancient origin for the double-negative specification of micromeres in sea urchins @ PNAS

Just out @ PNAS Paleogenomics of echinoids reveals an ancient origin for the double-negative specification of micromeres in sea urchins Author(s) Jeffrey R. Thompson, Eric M. Erkenbrack, Veronica F. Hinman, Brenna S. McCauley, Elizabeth Petsios, and David J. Bottjer Abstract: Establishing a timeline for the evolution of novelties is a common, unifying goal at the intersection of evolutionary and developmental biology. Analyses of gene regulatory networks (GRNs) provide the ability to

Just out | Independent evolution of baleen whale gigantism linked to Plio-Pleistocene ocean dynamics @ Proceedings of the Royal Society B

Just out @ Proceedings of the Royal Society B Independent evolution of baleen whale gigantism linked to Plio-Pleistocene ocean dynamics Author(s) Graham J. Slater, Jeremy A. Goldbogen, Nicholas D. Pyenson Abstract: Vertebrates have evolved to gigantic sizes repeatedly over the past 250 Myr, reaching their extreme in today’s baleen whales (Mysticeti). Hypotheses for the evolution of exceptionally large size in mysticetes range from niche partitioning to predator avoidance, but there has

Just out | Intercentrum versus pleurocentrum growth in early tetrapods: A paleohistological approach @ Journal of Morphology

Just out @ Journal of Morphology Intercentrum versus pleurocentrum growth in early tetrapods: A paleohistological approach Author(s) Marylène Danto, Florian Witzmann, Stephanie E. Pierce, Nadia B. Fröbisch Abstract: A variety of vertebral centrum morphologies have evolved within early tetrapods which range from multipartite centra consisting of intercentra and pleurocentra in stem-tetrapods, temnospondyls, seymouriamorphs, and anthracosaurs up to monospondylous centra in lepospondyls. With the present study, we aim to determine the formation

On the News | New Zealand | Huia-like bird could sing from the branches once again, but what are the limits? @ Stuff, The Press

On the News @ Stuff, The Press Title:  Huia-like bird could sing from the branches once again, but what are the limits? Excerpt: “Woolly mammoths stomping the arctic plains. Huia birds flitting between branches in the Wairarapa. Velociraptors roaming the Canterbury plains. OK, maybe not the velociraptors, but such a world is being painted by research into bringing animals back from extinction, an idea once reserved for dinosaur movies and science-fiction books. As

Just out | Mosasauroid phylogeny under multiple phylogenetic methods provides new insights on the evolution of aquatic adaptations in the group @ PLOSone

Just out @ PLOSone Mosasauroid phylogeny under multiple phylogenetic methods provides new insights on the evolution of aquatic adaptations in the group Author(s) Tiago R. Simões, Oksana Vernygora, Ilaria Paparella, Paulina Jimenez-Huidobro, Michael W. Caldwell Abstract: Mosasauroids were a successful lineage of squamate reptiles (lizards and snakes) that radiated during the Late Cretaceous (95–66 million years ago). They can be considered one of the few lineages in the evolutionary history

Just out | Linking species habitat and past palaeoclimatic events to evolution of the teleost innate immune system @ Proceedings of the Royal Society B

Just out @ Proceedings of the Royal Society B Linking species habitat and past palaeoclimatic events to evolution of the teleost innate immune system Author(s) Monica Hongrø Solbakken, Kjetil Lysne Voje, Kjetill Sigurd Jakobsen, Sissel Jentoft Abstract: Host-intrinsic factors as well as environmental changes are known to be strong evolutionary drivers defining the genetic foundation of immunity. Using a novel set of teleost genomes and a time-calibrated phylogeny, we here

Just out | A new phylogeny of Stegosauria (Dinosauria, Ornithischia) @ Palaeontology

Just out @ Palaeontology A new phylogeny of Stegosauria (Dinosauria, Ornithischia) Author(s) Thomas J. Raven, Susannah C. R. Maidment Abstract: The stegosaurs are some of the most easily recognizable dinosaurs, but are surprisingly rare as fossils. Consequently much remains unknown about their palaeobiology, and every new stegosaurian find contributes to our understanding of the evolution of the clade. Since the last attempt to examine the evolutionary relationships of Stegosauria, new

Just out | Specimen-level phylogenetics in paleontology using the Fossilized Birth-Death model with sampled ancestors @ PeerJ

Just out @ PeerJ Title:  Specimen-level phylogenetics in paleontology using the Fossilized Birth-Death model with sampled ancestors Author(s): Andrea Cau Abstract: Bayesian phylogenetic methods integrating simultaneously morphological and stratigraphic information have been applied increasingly among paleontologists. Most of these studies have used Bayesian methods as an alternative to the widely-used parsimony analysis, to infer macroevolutionary patterns and relationships among species-level or higher taxa. Among recently introduced Bayesian methodologies, the Fossilized Birth-Death