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81“…Therizinosaurian theropods evolved many highly specialized osteological features in association with their bulky proportions, which were unusual in the context of the generally gracile Theropoda. Here we report a new therizinosaur, Lingyuanosaurus sihedangensis gen. et sp. nov., based on a specimen recovered from the Lower Cretaceous Jehol Group of Lingyuan, Liaoning Province, China, which displays a combination of plesiomorphic and derived features. …”
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82por Pittman, Michael, Gatesy, Stephen M., Upchurch, Paul, Goswami, Anjali, Hutchinson, John R.“…We observe that both dorsoventral and lateral joint stiffness decreased along the non-avian theropod lineage (between nodes Theropoda and Paraves). Our results show how the tail structure of non-avian theropods was mechanically appropriate for holding itself up against gravity and maintaining passive balance. …”
Publicado 2013
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83“…We found that the skull shape of the hypothetical ancestor of Saurischia likely led to basal Sauropodomorpha through paedomorphosis, and to basal Theropoda mainly through peramorphosis. Paedomorphosis then led from Orionides to Avetheropoda, indicating that the paedomorphic trend found by previous authors in advanced coelurosaurs may extend back into the early evolution of Avetheropoda. …”
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84“…Identifying these often fragmentary remains beyond high-level taxonomic ranks, such as Ornithopoda or Theropoda, is difficult and those classified to lower taxonomic levels are often debated. …”
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85“…Incongruence is not uniformly distributed across major dinosaur clades, being highest (63%) in Theropoda and lowest (25%) in Thyreophora. As in previous studies, our partition tests show some sensitivity to matrix dimensions and the amount and distribution of missing entries. …”
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86Publicado 1997Tabla de Contenidos: “…South African Museum -- South American Dinosaurs -- Southeast Asian Dinosaurs -- Soviet-Mongolian Paleontological Expeditions -- Speciation -- Species -- Spinosauridae and Baryonychidae -- State Museum for Natural History, Stuttgart, Germany -- Staurikosauridae -- Stegosauria -- Systematics -- Taphonomy -- Teeth and Jaws -- Tendaguru -- Tetanurae -- Thecodontia -- Therizinosauria -- Theropoda -- Thyreophora -- Tooth Marks -- Tooth Replacement Patterns -- Tooth Serrations in Carnivorous Dinosaurs -- Tooth Wear -- Trace Fossils -- Triassic Period -- Troodontidae -- Trophic Groups -- Trossingen -- Two Medicine Formation -- Tyrannosauridae -- Ukhaa Tolgod -- University of California Museum of Paleontology -- Variation -- Vertebrata -- Vertebrate Paleontology -- Von Ebner Incremental Growth Lines -- Wealden Group -- Willow Creek Anticline -- Yale Peabody Museum -- Zigong Museum.…”
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