檢視始三角龍屬的原始碼

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|<center>'''始三角龍屬'''<br><img src="https://i.pinimg.com/originals/8b/b4/a5/8bb4a52951e4973f00969f52bd11105e.jpg" width="280"></center><small>[https://www.pinterest.com/pin/616008055255622478/ 圖片來自pinterest]</small> 
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'''始三角龍屬'''（[[學名]]：''Eotriceratops''）是[[角龍科]][[恐龍]]的一[[屬]]，生存於[[上白堊紀]]時期。牠們的[[化石]]是被發現於[[馬蹄峽谷地層]]，約6760萬年前。頭骨長度約為3公尺。

根據頭骨來推測，其身體可能有12公尺長<ref name="thesun2007">White, R. and Reilly, T. (2007), "Dino's got head the size of car." ''The Sun'', 8 November 2007. Accessed online 26 May 2008, http://www.thesun.co.uk/sol/homepage/news/article516666.ece {{WebCite|url=https://www.webcitation.org/5hjMxMPFD?url=http://www.thesun.co.uk/sol/homepage/news/article516666.ece |date=20090622214318 |dateformat=iso }}</ref>，另一份保守的估計值則為9公尺<ref>{{cite book| last = Holtz| first = Thomas R. Jr.| authorlink = | title = Dinosaurs: The Most Complete, Up-to-Date Encyclopedia for Dinosaur Lovers of All Ages| publisher = Random House| date = 2008| location = | pages = pg 52, updated appendix| url = http://www.geol.umd.edu/~tholtz/dinoappendix/DinoappendixSummer2008.pdf| doi = | id = | isbn = 0375824197| access-date = 2008-10-04| archive-date = 2011-06-15| archive-url = https://web.archive.org/web/20110615201329/http://www.geol.umd.edu/~tholtz/dinoappendix/DinoappendixSummer2008.pdf| dead-url = no}}</ref>；但不管如何，都是角龙科里面体型最大的一个属。

[[模式種]]是'''荒漠始三角龍'''（''E. xerinsularis''），是在2007年由[[吴晓春]]等人描述及命名，屬名意為「早期的[[三角龍]]」<ref name="wuetal2007">{{cite journal |last1=Wu |first1=X-C. |last2=Brinkman |first2=D.B. |last3=Eberth |first3=D.A. |last4=Braman |first4=D.R. |year=2007. |title=A new ceratopsid dinosaur (Ornithischia) from the uppermost Horseshoe Canyon Formation (upper Maastrichtian), Alberta, Canada. |journal=Canadian Journal of Earth Science |volume=44 |issue=9 |pages=1243-1265}}</ref>。種名意為「乾旱地」，意指化石發現處的乾島水牛跳峡谷省立公園。