Results 51 to 60 of about 5,330 (201)
On the Dinosauria of the Cambridge Greensand [PDF]
I ntroductory N ote . The remains of Dinosaurs were for many years very rarely met with in the Cambridge Upper Greensand; and several important parts of the skeleton have never yet been found.
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Macroevolutionary trends in the Dinosauria: Cope's rule [PDF]
AbstractCope's rule is the tendency for body size to increase over time along a lineage. A set of 65 phylogenetically independent comparisons, between earlier and later genera, show that Cope's rule applied in dinosaurs: later genera were on average about 25% longer than the related earlier genera to which they were compared.
TM Keesey+3 more
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Se redescribe un esqueleto postcraneal de dinosaurio ornitópodo asignado por Albert de Lapparent en 1960 a Iguanodon bernissartensis. Procede del yacimiento de La Maca 3, de edad Barremiense inferior (Formación Camarillas), y consta de varias vértebras ...
J. I. Ruiz-Omeñaca
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XI.—Classification of the Dinosauria [PDF]
(1882). XI.—Classification of the Dinosauria. Annals and Magazine of Natural History: Vol. 9, No. 50, pp. 79-84.
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Ornithischians, one of the three major groups of dinosaurs, developed a unique mechanism to ensure airflow in the lungs.
Marc R Spencer
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Phylogenetic relationships of the Cretaceous Gondwanan theropods Megaraptor and Australovenator: the evidence afforded by their manual anatomy [PDF]
General comparisons of the manual elements of megaraptorid theropods are conducted with the aim to enlarge the morphological dataset of phylogenetically useful features within Tetanurae.
Agnolin, Federico+2 more
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A well-preserved vertebra provides new insights into rebbachisaurid sauropod caudal anatomical and pneumatic features [PDF]
Rebbachisauridae is a clade of sauropod dinosaurs whose maximum diversification and abundance are known from the Cretaceous of South America. We describe an anterior caudal vertebra, MDPA-Pv 007, from the Upper Cretaceous of Argentine Patagonia, whose ...
GUILLERMO J. WINDHOLZ+4 more
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Body temperatures of modern and extinct vertebrates from ^(13)C-^(18)O bond abundances in bioapatite [PDF]
The stable isotope compositions of biologically precipitated apatite in bone, teeth, and scales are widely used to obtain information on the diet, behavior, and physiology of extinct organisms and to reconstruct past climate.
Eagle, Robert A.+5 more
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Estimating cranial musculoskeletal constraints in theropod dinosaurs [PDF]
Many inferences on the biology, behaviour and ecology of extinct vertebrates are based on the reconstruction of the musculature and rely considerably on its accuracy.
Stephan Lautenschlager
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The first Jurassic theropod from the Sergi Formation, Jatobá Basin, Brazil
Archosaur osteological remains are abundant in Brazil, particularly from the Triassic and Cretaceous strata, but in Jurassic, the record is predominantly represented by ichnofossils.
KAMILA L.N. BANDEIRA+5 more
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