Observations on the skull of the type specimen of Tyrannosaurus rex Osborn, 1905
The skull bones of the type specimen of Tyrannosaurus rex have been undescribed since the early 20th Century. The objectives were to provide a description of the type skull, assess the homology of characters seen in adults and juveniles, and test the ...
Thomas D. Carr
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Tooth enamel microstructure of Revueltosaurus and Krzyzanowskisaurus (Reptilia: Archosauria) from the Upper Triassic Chinle Group, USA: Implications for function, growth, and phylogeny [PDF]
Tooth enamel microstructure can carry significant phylogenetic, ontogenetic, and functional information within amniotes. Here we provide the first descriptions of the tooth enamel microstructure of two Late Triassic taxa, the crurotarsan Revueltosaurus ...
Heckert, Andrew B.+1 more
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Published as part of Holtz, T. R., 2001, The phylogeny and taxonomy of the Tyrannosauridae, pp. 64-83 in Mesozoic Vertebrate Life, Bloomington :Indiana University Press on pages 66-67, DOI: 10.5281/zenodo ...
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Tyrannosauridae, indeterminate 30749 Thirteen teeth of varying size belonging to more than one individual from the Lance Formation, on Sheep Mountain, Carter County, Montana. The smaller teeth may belong to a different genus. 12102 Left femur. Same data as above.
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New specimens of the basal ornithischian dinosaur Lesothosaurus diagnosticus Galton, 1978 from the Early Jurassic of South Africa [PDF]
We describe new specimens of the basal ornithischian dinosaur Lesothosaurus diagnosticus Galton, 1978 collected from a bonebed in the Fouriesburg district of the Free State, South Africa.
Baron, MG+4 more
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Growing Up Tyrannosaurus Rex: Osteohistology Refutes the Pygmy Nanotyrannus and Supports Ontogenetic Niche Partitioning in Juvenile Tyrannosaurus [PDF]
Despite its iconic status as the king of dinosaurs, Tyrannosaurus rex biology is incompletely understood. Here, we examine femur and tibia bone microstructure from two half-grown T.
Horner, John R.+5 more
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A new tyrannosaurine specimen (Theropoda: Tyrannosauroidea) with insect borings from the Upper Cretaceous Honglishan Formation of Northwestern China [PDF]
A large theropod ilium was recently collected from the Upper Cretaceous Honglishan Formation in the Sangequan area of the northern Junggar Basin, Xinjiang, China, which represents the first officially reported dinosaur fossil from this formation. Several
Bi, Shundong+4 more
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Published as part of Carpenter, K., 1992, Tyrannosaurids (Dinosauria) of Asia and North America, pp. 250-268 in Aspects of Nonmarine Cretaceous Geology, Beijing :China Ocean Press on page 253, DOI: 10.5281/zenodo ...
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Dientes de terópodos del Cretácico Superior del Estado de Coahuila, México
En México, los terópodos son un grupo de dinosaurios poco conocido, el escaso material descrito ha sido referido solamente a nivel de “familia”. Como resultado de la investigación paleontológica realizada en el Estado de Coahuila, se recuperó material ...
Esperanza Torres-Rodríguez+3 more
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