【雷巴齐斯龙科】
雷巴齐斯龙科（学名：Rebbachisauridae）是蜥脚类恐龙的一个科，所知于南美洲、非洲、北美洲和欧洲白垩纪时期的化石碎片。
==分类学==
1990年，蜥脚类专家杰克·麦金托什（Jack McIntosh）根据骨骼细节将第一种已知的雷巴齐斯龙科——北非巨型蜥脚类雷巴齐斯龙归入梁龙科中的叉龙亚科。之后几年里，随着一些新属的发现，人们意识到雷巴齐斯龙及其近亲构成了一个独特的恐龙分类群。1997年，阿根廷古生物学家何塞·波拿巴叙述了雷巴齐斯龙科，2011年，Whitlock定义了该科的两个新亚科：尼日龙亚科和利迈河龙亚科。以下演化树为Fanti等人（2013年）的研究成果，其依据是Carballido等人（2012年）的系统发育分析：
以下演化树根据Fanti等人（2015年）的研究。
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color:1900s bar:NAM4 at:2003 mark:(line,black) text:亚马逊龙
color:1900s bar:NAM11 at:2012 mark:(line,black) text:科马约龙
color:1900s bar:NAM2 at:1998 mark:(line,black) text:伊斯的利亚龙
color:1900s bar:NAM8 at:2007 mark:(line,black) text:诺普乔椎龙
color:1900s bar:NAM7 at:2006 mark:(line,black) text:萨帕拉龙
color:1800s bar:NAM1 at:1996 mark:(line,black) text:雷尤守龙
color:1900s bar:NAM1 at:1954 mark:(line,black) text:雷巴琪龙
color:1900s bar:NAM6 at:2005 mark:(line,black) text:鹫龙
color:1800s bar:NAM5 at:2004 mark:(line,black) text:利迈河龙
color:1800s bar:NAM10 at:2011 mark:(line,black) text:德曼达龙
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color:1800s bar:NAM1 at:2013 mark:(line,black) text:泰塔温龙
color:1800s bar:NAM2 at:2013 mark:(line,black) text:孔椎龙
color:1800s bar:NAM3 at:2018 mark:(line,black) text:极巨龙
color:1800s bar:NAM4 at:2018 mark:(line,black) text:拉瓦卡特龙
color:1800s bar:NAM9 at:2007 mark:(line,black) text:异波塞东龙
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==演化关系与特征==
尼日龙的牙齿
尽管所有权威都同意雷巴齐斯龙科是梁龙超科的成员，但它们缺乏梁龙科和叉龙科分叉的颈椎神经棘，因此被认为比后两类更原始。目前尚不清楚它们是否具有后两个类群特有的鞭尾。
雷巴齐斯龙科与其他蜥脚类的区别在于其独特的牙齿，这些牙齿具有低角度、内部wear facet和不对称的珐琅质。
至少有些雷巴齐斯龙科（如尼日龙）的特征是具有齿系，这在蜥脚类中独一无二，类似于鸭嘴龙类和角龙类恐龙。这样的摄食适应在恐龙中已经独立发展了三次。
到目前为止，已知雷巴齐斯龙科只出现在晚侏罗世至晚白垩世。它们构成了该分支最后一类已知代表并与泰坦巨龙类生活在一起。
==注脚==