星牙龍屬

星牙龍屬(學名:Astrodon)是種大型草食性恐龍,屬於蜥腳下目,是腕龍的近親,生活於白堊紀早期的美國東部。根據地層所含孢粉型態的年代測定,發現星牙龍是生活於阿普第階到阿爾比階之間,距今約1億1200萬年前。

在1998年,星牙龍被選定為馬里蘭州的州恐龍。

參考資料
*Johnston, C., 1859, "Note on odontography," Amer. Journal Dental Sci. 9:337-343.
*Kranz, P.M. 1996, "Notes on the Sedimentary Iron Ores of Maryland and their Dinosaurian Fauna", in Maryland Geological Survey Special Publication No. 3, pp. 87–115.
*Leidy, J 1865, Memoir on the extinct reptiles of the Cretaceous formations of the United States. Smithson. Contrib. Knowl. XIV: atr. VI: 1-135.
*Lucas, F.A. 1904, "Paleontological notes," Science (n.s.) XIX (480): 436-437.
*Lull, R.S. 1911, "The Reptillian Fauna of the Arundel Formation" and "Systematic Paleontology of the Lower Cretaceous Deposits of Maryland -Dinosauria", Lower Cretaceous : Maryland Geological Survey Systematic Reports, pp. 173–178, 183-211.
*Marsh, O.C. 1888, "Notice of a New Genus of Sauropoda and Other New Dinosaurs from the Potomac Group," American Journal of Science, 3rd Series, Vol. XXXV, pp. 89–94.

外部連結
*[https://web.archive.org/web/20060104115251/http://www.mdarchives.state.md.us/msa/mdmanual/01glance/html/symbols/dino.html Maryland State Archives]

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