艾米莉亚龙属

艾米莉亚龙属; 化石时期：早白垩世凡蓝今期 PreЄ Є O S D C P T J K Pg N
科学分类
界：	动物界 Animalia
门：	脊索动物门 Chordata
纲：	蜥形纲 Sauropsida
总目：	恐龙总目 Dinosauria
目：	†鸟臀目 Ornithischia
亚目：	†鸟脚亚目 Ornithopoda
演化支：	†禽龙类 Iguanodontia
演化支：	†凹齿龙形态类 Rhabdodontomorpha
属：	†艾米莉亚龙属 Emiliasaura; Coria et al., 2024
模式种
	†亚氏艾米莉亚龙; Emiliasaura alessandrii; Coria et al., 2024

艾米莉亚龙属（学名：Emiliasaura，意为“艾米莉亚的蜥蜴”）是凹齿龙形态类鸟脚类恐龙的一个属，发现于阿根廷内乌肯省早白垩世（凡蓝今期）的穆利钦科组（英语：Mulichinco Formation）。模式种是亚氏艾米莉亚龙（Emiliasaura alessandrii）。^[1]

发现与命名

正模标本MLL-Pv-001由前后肢骨骼、骨盆骨及尾椎组成，发现于拉斯拉哈斯市的穆利钦科组（英语：Mulichinco Formation）。^[1]

其于2024年被描述为鸟脚类新属新种。属名Emiliasaura致敬拉斯拉哈斯首家博物馆的创始人艾米莉亚·德·菲克斯（Emilia "Grandma" Ondettia de Fix）。种名致敬正模标本发现者卡洛斯·亚历山德里（Carlos Alessandri）。^[1]

分类

将艾米莉亚龙纳入系统发育分析，发现它是凹齿龙形态类最原始的成员，使其成为该演化支最古老也是首个在南美发现的成员。^[1]

古环境

发现艾米莉亚龙的穆利钦科组还出土了一种分类不明的梁龙科、叉龙科的皮尔马图埃龙、鲨齿龙科的拉哈斯猎龙及罗汉松科树木的遗骸。^[2]^[3]^[4]^[5]

参考资料

^ ^1.0 ^1.1 ^1.2 ^1.3 Coria, R. A.; Cerda, A. A.; Escaso, F.; Baiano, M. A.; Bellardini, F.; Braun, A.; Coria, L. M.; Gutierrez, J. M.; Pino, D.; Windholz, G. J.; Currie, P. J.; Ortega, F. First Valanginian (Early Cretaceous) ornithopod (Dinosauria, Ornithischia) from Patagonia. Cretaceous Research. 2024. 106027. doi:10.1016/j.cretres.2024.106027.
^ Rodolfo A. Coria; Guillermo J. Windholz; Francisco Ortega; Philip J. Currie. A new dicraeosaurid sauropod from the Lower Cretaceous (Mulichinco Formation, Valanginian, Neuquén Basin) of Argentina. Cretaceous Research. 2018, 93: 33–48. Bibcode:2019CrRes..93...33C. S2CID 135017018. doi:10.1016/j.cretres.2018.08.019.
^ Coria, Rodolfo A.; Currie, Philip J.; Ortega, Francisco; Baiano, Mattia A. An Early Cretaceous, medium-sized carcharodontosaurid theropod (Dinosauria, Saurischia) from the Mulichinco Formation (upper Valanginian), Neuquén Province, Patagonia, Argentina. Cretaceous Research. 2019-11-25, 111: 104319. ISSN 0195-6671. S2CID 214475057. doi:10.1016/j.cretres.2019.104319. hdl:11336/122794  .
^ Gallina, Pablo A.; Apesteguía, Sebastián; Canale, Juan I.; Haluza, Alejandro. A new long-spined dinosaur from Patagonia sheds light on sauropod defense system. Scientific Reports. 2019-02-04, 9 (1): 1392. Bibcode:2019NatSR...9.1392G. ISSN 2045-2322. PMC 6362061  . PMID 30718633. S2CID 59603627. doi:10.1038/s41598-018-37943-3  .
^ Gallina, Pablo A.; Apesteguía, Sebastián; Carballido, José L.; Garderes, Juan P. Southernmost spiny backs and whiplash tails: flagellicaudatans from South America. Otero, Alejandro; Carballido, José L.; Pol, Diego (编). South American Sauropodomorph Dinosaurs. Cham: Springer International Publishing. 2022: 209–236. ISBN 978-3-030-95958-6.

[Emiliasaura-1] 1.0 ^1.1 ^1.2 ^1.3 Coria, R. A.; Cerda, A. A.; Escaso, F.; Baiano, M. A.; Bellardini, F.; Braun, A.; Coria, L. M.; Gutierrez, J. M.; Pino, D.; Windholz, G. J.; Currie, P. J.; Ortega, F. First Valanginian (Early Cretaceous) ornithopod (Dinosauria, Ornithischia) from Patagonia. Cretaceous Research. 2024. 106027. doi:10.1016/j.cretres.2024.106027.

[Coria2018-2] Rodolfo A. Coria; Guillermo J. Windholz; Francisco Ortega; Philip J. Currie. A new dicraeosaurid sauropod from the Lower Cretaceous (Mulichinco Formation, Valanginian, Neuquén Basin) of Argentina. Cretaceous Research. 2018, 93: 33–48. Bibcode:2019CrRes..93...33C. S2CID 135017018. doi:10.1016/j.cretres.2018.08.019.

[Coria2019-3] Coria, Rodolfo A.; Currie, Philip J.; Ortega, Francisco; Baiano, Mattia A. An Early Cretaceous, medium-sized carcharodontosaurid theropod (Dinosauria, Saurischia) from the Mulichinco Formation (upper Valanginian), Neuquén Province, Patagonia, Argentina. Cretaceous Research. 2019-11-25, 111: 104319. ISSN 0195-6671. S2CID 214475057. doi:10.1016/j.cretres.2019.104319. hdl:11336/122794  .

[Gallina2019-4] Gallina, Pablo A.; Apesteguía, Sebastián; Canale, Juan I.; Haluza, Alejandro. A new long-spined dinosaur from Patagonia sheds light on sauropod defense system. Scientific Reports. 2019-02-04, 9 (1): 1392. Bibcode:2019NatSR...9.1392G. ISSN 2045-2322. PMC 6362061  . PMID 30718633. S2CID 59603627. doi:10.1038/s41598-018-37943-3  .

[Gallina2022-5] Gallina, Pablo A.; Apesteguía, Sebastián; Carballido, José L.; Garderes, Juan P. Southernmost spiny backs and whiplash tails: flagellicaudatans from South America. Otero, Alejandro; Carballido, José L.; Pol, Diego (编). South American Sauropodomorph Dinosaurs. Cham: Springer International Publishing. 2022: 209–236. ISBN 978-3-030-95958-6.

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