Results 31 to 40 of about 261 (112)
, 2022 Avian paleontology in Brazil is a research field still in its early stages despite its relatively abundant material. The remains are represented by bones, feather impressions, eggs, coprolites, and ichnofossils found in all Regions of Brazil starting in ...
Nascimento, Rafael Silva do
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Feathering Dinosaurs: The transition from Theropods to Birds [PDF]
, 2003 Desde el inicio del pensamiento evolutivo, el origen de las aves ha constituido uno de los problemas más polémicos de la biología evolutiva. En la actualidad, un gran cúmulo de evidencia indica que dicho problema se encuentra de gran manera resuelto.
Vargas, Alexander, Chiappe, Luis M
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Plumage color patterns of an extinct dinosaur
, 2010 For as long as dinosaurs have been known to exist, there has been speculation about their appearance. Fossil feathers can preserve the morphology of color-imparting melanosomes, which allow color patterns in feathered dinosaurs to be reconstructed. Here,
Shawkey, Matthew D. +17 more
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, 2006 A recently discovered small maniraptoran from the Morrison Formation of Wyoming provides new evidence for the placement of small Jurassic maniraptorans in theropod phylogeny. The specimen, WDC DML-01, is one of the oldest known taxa to be referred to the
Wahl, William R.
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Linking the evolution of body shape and locomotor biomechanics in bird-line archosaurs
, 2013 Locomotion in living birds (Neornithes) has two remarkable features: feather-assisted flight, and the use of unusually crouched hindlimbs for bipedal support and movement.
Liverpool +14 more
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, 2013 Phase I (Theropoda), variable posterior extension of paraxial cervical air sacs. Phase II (Tetanurae), elaboration of cranial (clavicular) and caudal (abdominal) intrathoracic air sac divisions and subcutaneous diverticulae. Phase III (Maniraptoriformes),
Oscar A. Alcober (197700) +5 more
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Synchrotron scanning reveals amphibious ecomorphology in a new clade of bird-like dinosaurs.
, 2017 Maniraptora includes birds and their closest relatives among theropod dinosaurs. During the Cretaceous period, several maniraptoran lineages diverged from the ancestral coelurosaurian bauplan and evolved novel ecomorphologies, including active flight,
Barsbold R. +9 more
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Theropod (Dinosauria) diversity from the Potiguar Basin (Early-Late Cretaceous Albian-Cenomanian), northeast Brazil [PDF]
, 2020 The theropod record from the Cretaceous of northeastern Brazil is rare and consists mostly of isolated and incomplete remains, with only four species described.
Candeiro, C.R.A. +5 more
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Origin of the propatagium in non-avian dinosaurs. [PDF]
Zoological Lett, 2023 Uno Y, Hirasawa T.
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, 2003 We describe four theropod teeth from the Upper Hauterivian-Lowermost Barremian of La Cantalera (Teruel, Spain), characterized by the presence of denticles only in their distal edge, being the mesial one rounded. These two features suggest affinities with
Ruiz Omeñaca, José Ignacio +1 more
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