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Pancrustacean phylogeny: hexapods are terrestrial crustaceans and maxillopods are not monophyletic
Recent molecular analyses indicate that crustaceans and hexapods form a clade (Pancrustacea or Tetraconata), but relationships among its constituent lineages, including monophyly of crustaceans, areExpand
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The Predatory Ecology of Deinonychus and the Origin of Flapping in Birds
Most non-avian theropod dinosaurs are characterized by fearsome serrated teeth and sharp recurved claws. Interpretation of theropod predatory ecology is typically based on functional morphologicalExpand
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Long-axis rotation: a missing degree of freedom in avian bipedal locomotion
Ground-dwelling birds are typically characterized as erect bipeds having hind limbs that operate parasagittally. Consequently, most previous research has emphasized flexion/extension angles andExpand
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Phylogeny of Basal Hexapod Lineages and Estimates of Divergence Times
Abstract Phylogenetic relationships among basal hexapod lineages were investigated using molecular sequence data derived from three nuclear genes: elongation factor-1α, RNA polymerase II, andExpand
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Robust support for tardigrade clades and their ages from three protein-coding nuclear genes
. Coding sequences (5,334 nt total) from elongation factor-1α, elongation factor-2, and the largest subunit of RNA polymerase II were determined for 6 species of Tardigrada, 2 of Arthropoda, and 2 ofExpand
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On Their Knees: Distal Femur Asymmetry in Ungulates and Its Relationship to Body Size and Locomotion
ABSTRACT Asymmetry of the knee (distal femur), where the medial trochlear ridge is larger than the lateral one, has been observed in certain ungulates, but until now there has not been aExpand
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Guineafowl with a twist: asymmetric limb control in steady bipedal locomotion
ABSTRACT In avian bipeds performing steady locomotion, right and left limbs are typically assumed to act out of phase, but with little kinematic disparity. However, outwardly appearing steadiness mayExpand
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3‐D range of motion envelopes reveal interacting degrees of freedom in avian hind limb joints
Measuring range of motion (ROM) is a valuable technique that can link bone morphology to joint function in both extant and extinct taxa. ROM results are commonly presented as tables or graphs ofExpand
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Gearing effects of the patella (knee extensor muscle sesamoid) of the helmeted guineafowl during terrestrial locomotion
Abstract Human patellae (kneecaps) are thought to act as gears, altering the mechanical advantage of knee extensor muscles during running. Similar sesamoids have evolved in the knee extensor tendonExpand
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