Results 21 to 30 of about 5,330 (201)
, 2022 Dinosauria (Fig. 6: node 1) Definition adopted: The least inclusive clade containing Iguanodon bernissartensis, Megalosaurus bucklandii and Cetiosaurus oxoniensis Phillips, 1871 (Langer et al., 2020). Characters in support (here): Basipterygoid process mediolaterally compressed (Char.
Norman, David B +3 more
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A new gigantic titanosaurian sauropod from the early Late Cretaceous of Patagonia (Neuquén Province, Argentina) [PDF]
Acta Palaeontologica Polonica, 2023 A new gigantic titanosaur Bustingorrytitan shiva gen. et sp. nov. is described. The four specimens upon which this species is erected come from Neuquén Province, Argentina, from levels of the Huincul Formation (Cenomanian).
MARÍA EDITH SIMÓN, LEONARDO SALGADO
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Novel pneumatic features in the ribs of the sauropod dinosaur Brachiosaurus altithorax [PDF]
Acta Palaeontologica Polonica, 2023 Pneumatic dorsal ribs are known for many sauropods, but to date costal pneumaticity has received relatively little attention. In particular, the pneumatic ribs of the holotype specimen of Brachiosaurus altithorax have been largely overlooked, although ...
MICHAEL P. TAYLOR, MATHEW J. WEDEL
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Dinosaur diversification rates were not in decline prior to the K-Pg boundary [PDF]
Royal Society Open Science, 2020 Determining the tempo and mode of non-avian dinosaur extinction is one of the most contentious issues in palaeobiology. Extensive disagreements remain over whether their extinction was catastrophic and geologically instantaneous or the culmination of ...
Joseph A. Bonsor +3 more
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A genus-level supertree of the Dinosauria [PDF]
Proceedings of the Royal Society of London. Series B: Biological Sciences, 2002 One of the ultimate aims of systematics is the reconstruction of the tree of life. This is a huge undertaking that is inhibited by the existence of a computational limit to the inclusiveness of phylogenetic analyses. Supertree methods have been developed to overcome, or at least to go around this problem by combining smaller, partially overlapping ...
Pisani, Davide +3 more
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Taxonomic and stratigraphic update of the material historically attributed to Megalosaurus from Portugal [PDF]
Acta Palaeontologica PolonicaThe first paleontological works on Mesozoic vertebrates from Portugal, carried out from the end of the 19th and the first half of the 20th century, provided the discovery of significant collections of vertebrate fossils.
Elisabete Malafaia +4 more
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Pararhabdodon Isonensis and Tsintaosaurus Spinorhinus: A New Clade of Lambeosaurine Hadrosaurids from Eurasia [PDF]
, 2009 We present new anatomical information showing that Koutalisaurus kohlerorum, from the Maastrichtian of Lleida Province, northeastern Spain, is most probably the junior synonym of Pararhabdodon isonensis from the same region.
Prieto-Marquez, Aalbert +1 more
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New record of Abelisauroid Theropods from the Bauru group (upper cretaceous), São Paulo State, Brazil [PDF]
, 2014 Isolated bones of abelisauroid theropods from the Bauru Group (Late Cretaceous, Brazil), are described. They correspond to three individuals represented by fused ischia and part of the ilium, a partial axis, and a right fi bula, respectively. The fossils
Iori, Fabiano V. +2 more
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Acta Palaeontologica Polonica, 2023 Numerous dromaeosaurid taxa recovered from the Upper Cretaceous strata of the Gobi Desert raise questions over niche partitioning among closely related species.
ŁUKASZ CZEPIŃSKI
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Microstructural and crystallographic evolution of palaeognath (Aves) eggshells
eLife, 2023 The avian palaeognath phylogeny has been recently revised significantly due to the advancement of genome-wide comparative analyses and provides the opportunity to trace the evolution of the microstructure and crystallography of modern dinosaur eggshells.
Seung Choi +5 more
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