An integrative approach to understanding bird origins
Background The origin of birds is one of the most enduring and dramatic evolutionary
debates. The hypothesis that the primarily small-sized birds are nested within a theropod …
debates. The hypothesis that the primarily small-sized birds are nested within a theropod …
Evolution of the carnivorous dinosaurs during the Cretaceous: the evidence from Patagonia
Patagonia has yielded the most comprehensive fossil record of Cretaceous theropods from
Gondwana, consisting of 31 nominal species belonging to singleton taxa and six families …
Gondwana, consisting of 31 nominal species belonging to singleton taxa and six families …
[HTML][HTML] Paleontological discoveries in the Chorrillo Formation (upper Campanian-lower Maastrichtian, Upper Cretaceous), Santa Cruz Province, Patagonia …
The first fossil remains of vertebrates, invertebrates, plants and palynomorphs of the
Chorrillo Formation (Austral Basin), about 30km to the SW of the town of El Calafate …
Chorrillo Formation (Austral Basin), about 30km to the SW of the town of El Calafate …
The influence of juvenile dinosaurs on community structure and diversity
Despite dominating biodiversity in the Mesozoic, dinosaurs were not speciose. Oviparity
constrained even gigantic dinosaurs to less than 15 kg at birth; growth through multiple …
constrained even gigantic dinosaurs to less than 15 kg at birth; growth through multiple …
Evolution of vision and hearing modalities in theropod dinosaurs
Owls and nightbirds are nocturnal hunters of active prey that combine visual and hearing
adaptations to overcome limits on sensory performance in low light. Such sensory …
adaptations to overcome limits on sensory performance in low light. Such sensory …
[HTML][HTML] A new paravian dinosaur from the Late Jurassic of North America supports a late acquisition of avian flight
S Hartman, M Mortimer, WR Wahl, DR Lomax… - PeerJ, 2019 - peerj.com
The last two decades have seen a remarkable increase in the known diversity of basal
avialans and their paravian relatives. The lack of resolution in the relationships of these …
avialans and their paravian relatives. The lack of resolution in the relationships of these …
Chthonic severance: dinosaur eggs of the Mesozoic, the significance of partially buried eggs and contact incubation precursors
JD Hogan, DJ Varricchio - Philosophical Transactions of …, 2023 - royalsocietypublishing.org
For most dinosaurs, clutches consisted of a single layer of spherical to sub-spherical, highly
porous eggs that were probably fully buried. Both eggs and clutch form change drastically …
porous eggs that were probably fully buried. Both eggs and clutch form change drastically …
Reproduction in Mesozoic birds and evolution of the modern avian reproductive mode
DJ Varricchio, FD Jackson - The Auk: Ornithological Advances, 2016 - academic.oup.com
The reproductive biology of living birds differs dramatically from that of other extant
vertebrates. Although some attributes of modern avian reproduction had their origin within …
vertebrates. Although some attributes of modern avian reproduction had their origin within …
The dinosaurian ichnofauna of the lower cretaceous (Valanginian–Barremian) broome sandstone of the Walmadany area (James Price Point), Dampier Peninsula …
Extensive and well-preserved tracksites in the coastally exposed Lower Cretaceous
(Valanginian–Barremian) Broome Sandstone of the Dampier Peninsula provide almost the …
(Valanginian–Barremian) Broome Sandstone of the Dampier Peninsula provide almost the …
New information on Nqwebasaurus thwazi, a coelurosaurian theropod from the Early Cretaceous Kirkwood Formation in South Africa
JN Choiniere, CA Forster, WJ De Klerk - Journal of African Earth Sciences, 2012 - Elsevier
We performed additional preparation on the holotype skeleton of Nqwebasaurus thwazi and
discovered new skeletal material. We describe this material, which includes a maxilla with …
discovered new skeletal material. We describe this material, which includes a maxilla with …