Results 41 to 50 of about 216 (103)

Paleoneurology of stem palaeognaths clarifies the plesiomorphic condition of the crown bird central nervous system

open access: yesJournal of Morphology, Volume 285, Issue 6, June 2024.
We describe the nearly complete digital endocasts of the brain and bony labyrinth of the neotype specimen of Lithornis vulturinus, a palaeognathous bird from the early Eocene of Europe. Lithornis may provide the clearest insights to date into the neuroanatomy of the ancestral crown bird, combining an ancestrally unflexed brain with a caudally oriented ...
Klara E. Widrig   +2 more
wiley   +1 more source

Patterns of variation in fleshy diaspore size and abundance from Late Triassic–Oligocene

open access: yesBiological Reviews, Volume 99, Issue 2, Page 430-457, April 2024.
ABSTRACT Vertebrate‐mediated seed dispersal is a common attribute of many living plants, and variation in the size and abundance of fleshy diaspores is influenced by regional climate and by the nature of vertebrate seed dispersers among present‐day floras.
Duhita Naware, Roger Benson
wiley   +1 more source

Reconstruction of the pelvic girdle and hindlimb musculature of the early tetanurans Piatnitzkysauridae (Theropoda, Megalosauroidea)

open access: yesJournal of Anatomy, Volume 244, Issue 4, Page 557-593, April 2024.
Piatnitzkysauridae were Jurassic theropods that represented one of the earliest lineages to have evolved moderate body size. Here, we reconstructed the hindlimb musculature of this clade, allowing a more complete understanding of myological evolution in theropod pelvic appendages. Abstract Piatnitzkysauridae were Jurassic theropods that represented the
Mauro B. S. Lacerda   +2 more
wiley   +1 more source

Decoupling body shape and mass distribution in birds and their dinosaurian ancestors. [PDF]

open access: yesNat Commun, 2023
Macaulay S   +7 more
europepmc   +1 more source

New Patagonian Cretaceous theropod sheds light about the early radiation of Coelurosauria</a> </p><span class="r_subtitle"><img src="/img/openaccess.ico" alt="open access: yes" title="open access: yes" width="16" height="16"><i>Revista del Museo Argentino de Ciencias Naturales</i>, 2012 </span><br><span class="r_content">Here we describe a new theropod, Bicentenaria argentina nov. gen. et nov. sp., from the early Late Cretaceous of Patagonia. It is represented by more than a hundred bones belonging to different sized individuals, which were buried together in ...</span><br><span class="r_sub"><i>Fernando E Novas<span id="ma_5" style="display:none">, Martín D Ezcurra, Federico L Agnolin, Diego Pol, Raúl Ortíz</span>   <small><a href="#" style="color:#808080;" onClick="return toggle_div(this, 'ma_5')">+4 more</a></small></i></span><br><small><a href="https://doaj.org/article/fb7d9d628df24bf88631790c5d943be2" target="_blank" rel="nofollow" title="doaj.org/article/fb7d9d628df24bf88631790c5d943be2">doaj</a> </small>   <br></div><div class="r"><p class="r_title"><a href="https://doi.org/10.1126/sciadv.abe2778" target="_blank" rel="nofollow">The evolution of pelvic limb muscle moment arms in bird-line archosaurs.</a> <b><a href="https://europepmc.org/backend/ptpmcrender.fcgi?accid=PMC7978429&blobtype=pdf" target="_blank" rel="nofollow">[PDF]</a></b> </p><span class="r_subtitle"><img src="/img/openaccess.ico" alt="open access: yes" title="open access: yes" width="16" height="16"><i>Sci Adv</i>, 2021 </span><br><span class="r_sub"><i>Allen VR, Kilbourne BM, Hutchinson JR.</i></span><br><small><a href="https://europepmc.org/article/MED/33741593#free-full-text" target="_blank" rel="nofollow" title="europepmc.org/article/MED/33741593#free-full-text">europepmc</a> </small>   <div id="more_6" style="display:none"><a href="/sci_redir.php?doi=10.1126%2Fsciadv.abe2778" target="_blank" rel="nofollow">openaccessbutton.org (pdf)</a><br><a href="javascript:navigator.clipboard.writeText('10.1126/sciadv.abe2778'); alert('Copied the doi');">copy doi</a> <small>(10.1126/sciadv.abe2778)</small><br></div><small><a href="#" onClick="return toggle_div(this, 'more_6')">+1 more source</a></small><br></div><div class="r"><p class="r_title"><a href="https://doi.org/10.1098/rstb.2022.0143" target="_blank" rel="nofollow">The evolution of nest site use and nest architecture in modern birds and their ancestors.</a> <b><a href="https://europepmc.org/backend/ptpmcrender.fcgi?accid=PMC10331912&blobtype=pdf" target="_blank" rel="nofollow">[PDF]</a></b> </p><span class="r_subtitle"><img src="/img/openaccess.ico" alt="open access: yes" title="open access: yes" width="16" height="16"><i>Philos Trans R Soc Lond B Biol Sci</i>, 2023 </span><br><span class="r_sub"><i>Mainwaring MC<span id="ma_7" style="display:none">, Medina I, Tobalske BW, Hartley IR, Varricchio DJ, Hauber ME.</span>   <small><a href="#" style="color:#808080;" onClick="return toggle_div(this, 'ma_7')">+5 more</a></small></i></span><br><small><a href="https://europepmc.org/article/MED/37427466#free-full-text" target="_blank" rel="nofollow" title="europepmc.org/article/MED/37427466#free-full-text">europepmc</a> </small>   <div id="more_7" style="display:none"><a href="/sci_redir.php?doi=10.1098%2Frstb.2022.0143" target="_blank" rel="nofollow">openaccessbutton.org (pdf)</a><br><a href="javascript:navigator.clipboard.writeText('10.1098/rstb.2022.0143'); alert('Copied the doi');">copy doi</a> <small>(10.1098/rstb.2022.0143)</small><br></div><small><a href="#" onClick="return toggle_div(this, 'more_7')">+1 more source</a></small><br></div><div class="r"><p class="r_title"><a href="https://doi.org/10.6084/m9.figshare.27901095.v1" target="_blank" rel="nofollow">Exceptional Preservation of Non-Mineralized Biomaterials in Fossils of the Avialae Clade</a> </p><span class="r_subtitle"><img src="/img/openaccess.ico" alt="open access: yes" title="open access: yes" width="16" height="16"></span><br><span class="r_content">Thousands of primitive and diverse fossils birds from Mesozoic and Cenozoic have been discovered around the world. Among these, hundreds of studies have found exceptional preservation of mineralized biomaterials, allowing to expand the knowledge about the ecology and Evolution of birds.</span><br><small><a href="https://explore.openaire.eu/search/publication?pid=10.6084%2Fm9.figshare.27901095.v1" target="_blank" rel="nofollow" title="openaire.eu/search/publication?pid=10.6084%2Fm9.figshare.27901095.v1">openaire</a> </small>   <div id="more_8" style="display:none"><a href="/sci_redir.php?doi=10.6084%2Fm9.figshare.27901095.v1" target="_blank" rel="nofollow">openaccessbutton.org (pdf)</a><br><a href="javascript:navigator.clipboard.writeText('10.6084/m9.figshare.27901095.v1'); alert('Copied the doi');">copy doi</a> <small>(10.6084/m9.figshare.27901095.v1)</small><br></div><small><a href="#" onClick="return toggle_div(this, 'more_8')">+1 more source</a></small><br></div><div class="r"><p class="r_title"><a href="https://doi.org/10.1073/pnas.2019865118" target="_blank" rel="nofollow">Deep time diversity and the early radiations of birds.</a> <b><a href="https://europepmc.org/backend/ptpmcrender.fcgi?accid=PMC7958206&blobtype=pdf" target="_blank" rel="nofollow">[PDF]</a></b> </p><span class="r_subtitle"><img src="/img/openaccess.ico" alt="open access: yes" title="open access: yes" width="16" height="16"><i>Proc Natl Acad Sci U S A</i>, 2021 </span><br><span class="r_sub"><i>Yu Y, Zhang C, Xu X.</i></span><br><small><a href="https://europepmc.org/article/MED/33619176#free-full-text" target="_blank" rel="nofollow" title="europepmc.org/article/MED/33619176#free-full-text">europepmc</a> </small>   <div id="more_9" style="display:none"><a href="/sci_redir.php?doi=10.1073%2Fpnas.2019865118" target="_blank" rel="nofollow">openaccessbutton.org (pdf)</a><br><a href="javascript:navigator.clipboard.writeText('10.1073/pnas.2019865118'); alert('Copied the doi');">copy doi</a> <small>(10.1073/pnas.2019865118)</small><br></div><small><a href="#" onClick="return toggle_div(this, 'more_9')">+1 more source</a></small><br></div><div class="r"><p class="r_title"><a href="https://doi.org/10.1126/sciadv.abg7099" target="_blank" rel="nofollow">Bird neurocranial and body mass evolution across the end-Cretaceous mass extinction: The avian brain shape left other dinosaurs behind.</a> <b><a href="https://europepmc.org/backend/ptpmcrender.fcgi?accid=PMC8324052&blobtype=pdf" target="_blank" rel="nofollow">[PDF]</a></b> </p><span class="r_subtitle"><img src="/img/openaccess.ico" alt="open access: yes" title="open access: yes" width="16" height="16"><i>Sci Adv</i>, 2021 </span><br><span class="r_sub"><i>Torres CR, Norell MA, Clarke JA.</i></span><br><small><a href="https://europepmc.org/article/MED/34330706#free-full-text" target="_blank" rel="nofollow" title="europepmc.org/article/MED/34330706#free-full-text">europepmc</a> </small>   <div id="more_10" style="display:none"><a href="/sci_redir.php?doi=10.1126%2Fsciadv.abg7099" target="_blank" rel="nofollow">openaccessbutton.org (pdf)</a><br><a href="javascript:navigator.clipboard.writeText('10.1126/sciadv.abg7099'); alert('Copied the doi');">copy doi</a> <small>(10.1126/sciadv.abg7099)</small><br></div><small><a href="#" onClick="return toggle_div(this, 'more_10')">+1 more source</a></small><br></div><div class="r"><div style="margin-bottom:2px;overflow:hidden"><div style="display: inline-block; float: left; font-size: small; padding-right: 16px; margin-top: -1px; padding-bottom: 1px;"><a href="/q-medicine/" class="suggestion"onclick="show_loader();"><b>medicine</b></a><br/><a href="/q-birds/" class="suggestion"onclick="show_loader();"><b>birds</b></a><br/><a href="/q-phylogeny/" class="suggestion"onclick="show_loader();"><b>phylogeny</b></a><br/></div><div style="display: inline-block; float: left; font-size: small; padding-right: 16px; margin-top: -1px; padding-bottom: 1px;"><a href="/q-fossils/" class="suggestion"onclick="show_loader();"><b>fossils</b></a><br/><a href="/q-animals/" class="suggestion"onclick="show_loader();"><b>animals</b></a><br/><a href="/q-dromaeosauridae/" class="suggestion"onclick="show_loader();"><b>dromaeosauridae</b></a><br/></div><div style="display: inline-block; 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