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Matches in DBpedia 2014 for { <http://dbpedia.org/resource/Origin_of_birds> ?p ?o. }

• Origin_of_birds abstract "The origin of birds refers to the initial stages in the evolution of birds. The scientific consensus is that birds are a group of theropod dinosaurs that evolved during the Mesozoic Era.A close relationship between birds and dinosaurs was first proposed in the nineteenth century after the discovery of the primitive bird Archaeopteryx in Germany. Birds share many unique skeletal features with dinosaurs. Moreover, fossils of more than twenty species of dinosaur have been collected with preserved feathers. There are even very small dinosaurs, such as Microraptor and Anchiornis, which have long, vaned, arm and leg feathers forming wings. The Jurassic basal avialan Pedopenna also shows these long foot feathers. Witmer (2009) has concluded that this evidence is sufficient to demonstrate that avian evolution went through a four-winged stage.Fossil evidence also demonstrates that birds and dinosaurs shared features such as hollow, pneumatized bones, gastroliths in the digestive system, nest-building and brooding behaviors. The ground-breaking discovery of fossilized Tyrannosaurus rex soft tissue allowed a molecular comparison of cellular anatomy and protein sequencing of collagen tissue, both of which demonstrated that T. rex and birds are more closely related to each other than either is to Alligator. A second molecular study robustly supported the relationship of birds to dinosaurs, though it did not place birds within Theropoda, as expected. This study utilized eight additional collagen sequences extracted from a femur of Brachylophosaurus canadensis, a hadrosaur. A study comparing juvenile and adult archosaur skulls concluded that birds derived from dinosaurs by neoteny.The origin of birds has historically been a contentious topic within evolutionary biology. However, only a few scientists still debate the dinosaurian origin of birds, suggesting descent from other types of archosaurian reptiles. Among the consensus that supports dinosaurian ancestry, the exact sequence of evolutionary events that gave rise to the early birds within maniraptoran theropods is a hot topic. The origin of bird flight is a separate but related question for which there are also several proposed answers.".
• Origin_of_birds thumbnail Archaeopteryx_lithographica_(Berlin_specimen).jpg?width=300.
• Origin_of_birds wikiPageExternalLink Barsbold_83b.pdf.
• Origin_of_birds wikiPageExternalLink Bostwick_2003.pdf.
• Origin_of_birds wikiPageExternalLink www.dinosauria.com.
• Origin_of_birds wikiPageExternalLink archie.htm.
• Origin_of_birds wikiPageExternalLink dinoarch.htm.
• Origin_of_birds wikiPageExternalLink archaeopteryx.html.
• Origin_of_birds wikiPageExternalLink avians.html.
• Origin_of_birds wikiPageID "6763404".
• Origin_of_birds wikiPageRevisionID "605671817".
• Origin_of_birds annotBackgroundColor "#f6f6f6".
• Origin_of_birds annotations "# Blank out numbers in image".
• Origin_of_birds caption "Parts of a feather".
• Origin_of_birds float "right".
• Origin_of_birds hasPhotoCollection Origin_of_birds.
• Origin_of_birds height "175".
• Origin_of_birds imageLeft "0".
• Origin_of_birds imageTop "0".
• Origin_of_birds imageWidth "175".
• Origin_of_birds width "175".
• Origin_of_birds subject Category:Bird_evolution.
• Origin_of_birds subject Category:Dinosaurs.
• Origin_of_birds type Animal100015388.
• Origin_of_birds type Archosaur101695681.
• Origin_of_birds type Chordate101466257.
• Origin_of_birds type Diapsid101661818.
• Origin_of_birds type Dinosaur101699831.
• Origin_of_birds type Dinosaurs.
• Origin_of_birds type LivingThing100004258.
• Origin_of_birds type Object100002684.
• Origin_of_birds type Organism100004475.
• Origin_of_birds type PhysicalEntity100001930.
• Origin_of_birds type Reptile101661091.
• Origin_of_birds type Vertebrate101471682.
• Origin_of_birds type Whole100003553.
• Origin_of_birds comment "The origin of birds refers to the initial stages in the evolution of birds. The scientific consensus is that birds are a group of theropod dinosaurs that evolved during the Mesozoic Era.A close relationship between birds and dinosaurs was first proposed in the nineteenth century after the discovery of the primitive bird Archaeopteryx in Germany. Birds share many unique skeletal features with dinosaurs.".
• Origin_of_birds label "Oorsprong van de vogels".
• Origin_of_birds label "Origem das aves".
• Origin_of_birds label "Origen de las aves".
• Origin_of_birds label "Origin of birds".
• Origin_of_birds label "أصل الطيور".
• Origin_of_birds sameAs Origen_de_las_aves.
• Origin_of_birds sameAs Asal_usul_burung.
• Origin_of_birds sameAs Oorsprong_van_de_vogels.
• Origin_of_birds sameAs Origem_das_aves.
• Origin_of_birds sameAs m.0gmq11.
• Origin_of_birds sameAs Q905761.
• Origin_of_birds sameAs Q905761.
• Origin_of_birds sameAs Origin_of_birds.
• Origin_of_birds wasDerivedFrom Origin_of_birds?oldid=605671817.
• Origin_of_birds depiction Archaeopteryx_lithographica_(Berlin_specimen).jpg.
• Origin_of_birds isPrimaryTopicOf Origin_of_birds.