Eusaurischia
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Ubirajara jubatus
Dinosaur Ubirajara jubatus: scientific and paleontological classification, description, dimensions, length, weight, temporal range, species, fossils, references
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Udelartitan celeste
Dinosaur Udelartitan celeste: scientific and paleontological classification, description, dimensions, length, weight, temporal range, species, fossils, references
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Ultrasauros macintoshi
Dinosaur Ultrasauros macintoshi: scientific and paleontological classification, description, dimensions, length, weight, temporal range, species, fossils, references
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Ultrasaurus (1) tabriensis
Dinosaur Ultrasaurus (1) tabriensis: scientific and paleontological classification, description, dimensions, length, weight, temporal range, species, fossils, references
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Ulughbegsaurus uzbekistanensis
Dinosaur Ulughbegsaurus uzbekistanensis: scientific and paleontological classification, description, dimensions, length, weight, temporal range, species, fossils, references
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Unaysaurus tolentinoi
Dinosaur Unaysaurus tolentinoi: scientific and paleontological classification, description, dimensions, length, weight, temporal range, species, fossils, references
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Unenlagia comahuensis
Dinosaur Unenlagia comahuensis : scientific and paleontological classification, description, dimensions, length, weight, temporal range, species, fossils, references
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Unenlagia paynemili
Dinosaur Unenlagia paynemili : scientific and paleontological classification, description, dimensions, length, weight, temporal range, species, fossils, references
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Unquillosaurus ceibalii
Dinosaur Unquillosaurus ceibalii : scientific and paleontological classification, description, dimensions, length, weight, temporal range, species, fossils, references
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Urbacodon itemirensis
Dinosaur Urbacodon itemirensis : scientific and paleontological classification, description, dimensions, length, weight, temporal range, species, fossils, references