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Equijubus
''Equijubus'', meaning "horse mane" after the area in which it was found, is a genus of herbivorous hadrosauroid dinosaur from the Early Cretaceous (Aptian stage) of northwestern China. ==Discovery and naming== The type (and only known) specimen was found in the summer of 2000 by a Chinese-American expedition in the Mazong (= "horse mane") Shan area of China's Gansu Province.〔You, Luo, Shubin, Witmer, Tang and Tang (2003). "The earliest-known duck-billed dinosaur from deposits of late Early Cretaceous age in northwest China and hadrosaurid evolution." ''Cretaceous Research'', 24: 347-353.〕 In 2002 You Hialu in a dissertation named and described the species ''Equijubus normani''. The generic name is derived from Latin ''equus'', "horse", and ''juba'', "mane". The specific epithet "normani" is in honour of British palaeontologist David B. Norman.〔You Hailu, 2002, ''Mazongshan dinosaur assemblage from late Early Cretaceous of northwest China''. Dissertation University of Pennsylvania 164 pp〕 However, such a ''nomen ex dissertatione'' does not constitute a valid name. The type species ''Equijubus normani'' was formally named in an article by You, Luo Zhexi, Neil Shubin, Lawrence Witmer, Tang Zhilu and Tang Feng in 2003.〔
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