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Showing 1–12 of 12 results
Advanced filters: Author: Erik R. Seiffert Clear advanced filters
  • The proximal femur is key for understanding locomotion in primates. Here, the authors analyze the evolution of the proximal femur in catarrhines, including a new Aegyptopithecus fossil, and suggest that Old World monkeys and hominoids diverged from an ancestral state similar to Aegyptopithecus.

    • Sergio Almécija
    • Melissa Tallman
    • Erik R. Seiffert
    ResearchOpen Access
    Nature Communications
    Volume: 10, P: 1-9
  • The recent description of the primitive Eocene primate Darwinius has been widely publicized as an important 'link' in the early evolution of Anthropoidea. The extinct group to which Darwinius belongs, the 'adapoid' primates, was not generally thought to be close to the anthropoids. Here, the jaw and teeth of a large-bodied adapiform from the earliest late Eocene of Egypt is described; detailed phylogenetic analysis shows that adapiforms were only very distant relatives of anthropoids but that they do have some features that suggest convergent evolution.

    • Erik R. Seiffert
    • Jonathan M. G. Perry
    • Doug M. Boyer
    Research
    Nature
    Volume: 461, P: 1118-1121
  • The fossil taxon Propotto was originally identified as a primate, but is currently widely interpreted as a bat. Here, the authors identify Propotto as a stem chiromyiform lemur and, based on phylogenetic analysis, suggest two independent lemur colonizations of Madagascar.

    • Gregg F. Gunnell
    • Doug M. Boyer
    • Erik R. Seiffert
    ResearchOpen Access
    Nature Communications
    Volume: 9, P: 1-12
  • A new titanosaurian sauropod, Mansourasaurus, is the most complete terrestrial vertebrate from the post-Cenomanian Cretaceous of the African mainland. Phylogenetic analyses reveal the existence of a titanosaurian clade inhabiting both Africa and Europe at this time and a faunal connection between the two continents.

    • Hesham M. Sallam
    • Eric Gorscak
    • Matthew C. Lamanna
    Research
    Nature Ecology & Evolution
    Volume: 2, P: 445-451
  • Using time-scaled phylogenies of several endemic clades of small Afro-Arabian mammals, Dorien de Vries et al. infer a steep drop in species numbers around the Eocene-Oligocene transition. This dramatic decline coincides with a global cooling trend as well as the onset of widespread flood basalt volcanism in East Africa, and is found to be correlated with a major loss in dietary diversity.

    • Dorien de Vries
    • Steven Heritage
    • Erik R. Seiffert
    ResearchOpen Access
    Communications Biology
    Volume: 4, P: 1-9
  • Moliner et al. show that psychedelics directly bind to the BDNF receptor TrkB with high affinity and promote BDNF-mediated plasticity and antidepressant-like effects, whereas their hallucinogenic-like effects are independent of TrkB binding.

    • Rafael Moliner
    • Mykhailo Girych
    • Eero Castrén
    ResearchOpen Access
    Nature Neuroscience
    Volume: 26, P: 1032-1041
  • Molecular evidence suggests that the evolutionary split between hominoids and cercopithecoids occurred between 25 and 30 Myr ago, but fossil evidence for crown-group catarrhines (cercopithecoids and hominoids) before 20 Myr ago has been lacking; newly described fossils of a stem hominoid and a stem cercopithecoid precisely dated to 25.2 Myr ago help to fill this gap in the fossil record.

    • Nancy J. Stevens
    • Erik R. Seiffert
    • Joseph Temu
    Research
    Nature
    Volume: 497, P: 611-614
  • The gondwanatherians were mammals known only from teeth and some jaw fragments that lived in the southern continents alongside dinosaurs; here the entire cranium of a bizarre and badger-sized fossil mammal from the Cretaceous of Madagascar shows that gondwanatherians were related to the better-known multituberculates, a long-lived and successful group of now-extinct rodent-like mammals.

    • David W. Krause
    • Simone Hoffmann
    • Haingoson Andriamialison
    Research
    Nature
    Volume: 515, P: 512-517