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Updated: Feb 15, 2026

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类似鸟类的形恐龙的饮食:一个有争议的分类的合成
Yui Chi Fan1, Case Vincent Miller2, Michael Pittman1
1School of Life Sciences, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China.
Biological reviews of the Cambridge Philosophical Society
|February 14, 2026
概括
铁类恐龙的饮食多样化,不仅仅是肉类. 有证据表明,这些类动物是万食动物,食用植物和小动物,影响了我们对早期恐龙饮食的理解.
科学领域:
- 古生物学的古生物学
- 脊椎动物动物学 脊椎动物动物学
- 饮食生态学 饮食生态学
背景情况:
- 类 (Troodontidae) 是小到中型的类动物,在罗纪和白纪期间居住在劳拉西亚.
- 它们独特的牙表明,它们的饮食与典型的食肉类类热足动物有所不同,有些物种缺乏纹,这表明它们是食草动物或食肉动物.
- 尽管特种的脚踏指和牙形态等掠食性适应性,但虫动物表现出不同的食策略.
研究的目的:
- 为了研究Troodontidae的多样化的饮食,一个群体的恐龙.
- 综合从牙形态学,微磨损,胃内容和环境分析中得到的证据,以了解虫的食习惯.
- 根据特罗顿特的饮食证据推断相关的类型的祖先饮食.
主要方法:
- 分析牙形态,包括纹和牙形状.
- 使用"刺穿和拉动"分析检查牙微型磨损模式.
- 审查外部证据,如胃内含物和胃颗粒.
- 整合环境,形态和生物地化学数据.
主要成果:
- 牙的牙表现出独特的特征,这表明它们偏离了纯肉食的饮食.
- 胃内含物和胃颗粒的证据表明植物和动物物质的混合饮食.
- 据推断,北美特罗类动物特罗 (Troodon) 是万食动物,会食用植物和小动物.
- 类动物的饮食信息告知了类动物和类动物的祖先的饮食,这表明了杂食.
结论:
- 类动物的饮食多样化,可能包括植物和动物物质,挑战了对类动物肉食的传统观点.
- 这项研究强调了Troodon的万食性质,并表明万食是deinonychosaurs和paravians的祖先.
- 对未被充分研究的类动物化石,生物地球化学和后解剖学的进一步研究对于全面了解类动物生态多样性至关重要.
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