艾米莉亞龍屬

艾米莉亞龍屬; 化石時期：早白堊世凡藍今期 PreЄ Є O S D C P T J K Pg N
科學分類
界：	動物界 Animalia
門：	脊索動物門 Chordata
綱：	蜥形綱 Sauropsida
總目：	恐龍總目 Dinosauria
目：	†鳥臀目 Ornithischia
亞目：	†鳥腳亞目 Ornithopoda
演化支：	†禽龍類 Iguanodontia
演化支：	†凹齒龍形態類 Rhabdodontomorpha
屬：	†艾米莉亞龍屬 Emiliasaura; Coria et al., 2024
模式種
	†亞氏艾米莉亞龍; Emiliasaura alessandrii; Coria et al., 2024

艾米莉亞龍屬（學名：Emiliasaura，意為「艾米莉亞的蜥蜴」）是凹齒龍形態類鳥腳類恐龍的一個屬，發現於阿根廷內烏肯省早白堊世（凡藍今期）的穆利欽科組（英語：Mulichinco Formation）。模式種是亞氏艾米莉亞龍（Emiliasaura alessandrii）。^[1]

發現與命名

正模標本MLL-Pv-001由前後肢骨骼、骨盆骨及尾椎組成，發現於拉斯拉哈斯市的穆利欽科組（英語：Mulichinco Formation）。^[1]

其於2024年被描述為鳥腳類新屬新種。屬名Emiliasaura致敬拉斯拉哈斯首家博物館的創始人艾米莉亞·德·菲克斯（Emilia "Grandma" Ondettia de Fix）。種名致敬正模標本發現者卡洛斯·亞歷山德里（Carlos Alessandri）。^[1]

分類

將艾米莉亞龍納入系統發育分析，發現它是凹齒龍形態類最原始的成員，使其成為該演化支最古老也是首個在南美發現的成員。^[1]

古環境

發現艾米莉亞龍的穆利欽科組還出土了一種分類不明的梁龍科、叉龍科的皮爾馬圖埃龍、鯊齒龍科的拉哈斯獵龍及羅漢松科樹木的遺骸。^[2]^[3]^[4]^[5]

參考資料

^ ^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 (編). 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 (編). South American Sauropodomorph Dinosaurs. Cham: Springer International Publishing. 2022: 209–236. ISBN 978-3-030-95958-6.

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