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Origin of the propatagium in non-avian dinosaurs
Avian wings as organs for aerial locomotion are furnished with a highly specialized musculoskeletal system compared with the forelimbs of other...
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The Origin of Birds: Current Consensus, Controversy, and the Occurrence of Feathers
Research in the late 1900s has established that birds are theropod dinosaurs, with the discovery of feather preservation in non-avian theropods being...
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Avialan-like brain morphology in Sinovenator (Troodontidae, Theropoda)
Many modifications to the skull and brain anatomy occurred along the lineage encompassing non-avialan theropod dinosaurs and modern birds. Anatomical...
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Crane Knowledge Compact: The Myths and the Facts
Back then, as I anxiously watched the crane pair in its confined breeding site, apparently controlled by their purely mechanical instincts, I knew...
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Anatomy and Evolution of Avian Brain and Senses: What Endocasts Can Tell Us
Brain morphology has become a key element to predict a wide array of cognitive and behavioral, sensory and motor abilities, and to determine...
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Origin and Evolution of Birds
Archaeopteryx lived about 155 million years ago and was a descendent of a long line of dinosaur and theropod ancestors. In this chapter, I review...
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Paleoneurology of Non-avian Dinosaurs: An Overview
This chapter aims to provide an overview of the state of knowledge on non-avian dinosaur paleoneurology, throughout the history and synthesis of...
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Functional space analyses reveal the function and evolution of the most bizarre theropod manual unguals
Maniraptoran dinosaurs include the ancestors of birds, and most used their hands for grasping and in flight, but early-branching maniraptorans had...
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New theropod dinosaur from the Upper Cretaceous of Patagonia sheds light on the paravian radiation in Gondwana
The fossil record of basal paravians in Gondwana is still poorly known, being limited to the Cretaceous unenlagiids from South America and the...
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Diuqin lechiguanae gen. et sp. nov., a new unenlagiine (Theropoda: Paraves) from the Bajo de la Carpa Formation (Neuquén Group, Upper Cretaceous) of Neuquén Province, Patagonia, Argentina
BackgroundUnenlagiine paravians are among the most relevant Gondwanan theropod dinosaur clades for understanding the origin of birds, yet their...
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Skeleton and Skeletal Muscles
The avian skeleton and skeletal muscles have been modified by natural selection over millions of years to meet the demands of flight. Some birds have...
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Ultramicrostructural reductions in teeth: implications for dietary transition from non-avian dinosaurs to birds
BackgroundTooth morphology within theropod dinosaurs has been extensively investigated and shows high disparity throughout the Cretaceous. Changes or...
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Two of a Feather: A Comparison of the Preserved Integument in the Juvenile Theropod Dinosaurs Sciurumimus and Juravenator from the Kimmeridgian Torleite Formation of Southern Germany
The discoveries of numerous theropod dinosaurs with filamentous integumentary structures in various stages of morphological complexity from the Upper...
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Avian Locomotion: Flying, Running, Walking, Climbing, Swimming, and Diving
Most birds can fly, but can also, to varying degrees depending on the species and their habitats, walk, run, climb, swim, and dive. With a focus on...
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Jurassic Park: What Did the Genomes of Dinosaurs Look Like?
Recent palaeontological evidence is clear that birds are extant dinosaurs. Evolving along the lineage...
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Filamentous Integuments in Nonavialan Theropods and Their Kin: Advances and Future Perspectives for Understanding the Evolution of Feathers
The discovery of Sinosauropteryx in 1996 marks the beginning of a new era in the research on the origin and early evolution of feathers. Subsequent...
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A Morphological Review of the Enigmatic Elongated Tail Feathers of Stem Birds
Several stem birds, such as Confuciusornithidae and Enantiornithes, were characterized by the possession of one or two pairs of conspicuous,...
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An unusual bird (Theropoda, Avialae) from the Early Cretaceous of Japan suggests complex evolutionary history of basal birds
The Early Cretaceous basal birds were known largely from just two-dimensionally preserved specimens from north-eastern China (Jehol Biota), which has...
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Flightless birds are not neuroanatomical analogs of non-avian dinosaurs
BackgroundIn comparative neurobiology, major transitions in behavior are thought to be associated with proportional size changes in brain regions....
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Avian Reproduction: Nests and Nest Sites
With few exceptions, birds lay their eggs in nests and the young of many species spend variable amounts of time in nests before fledging. After...
