Palaeoenvironmental controls on the distribution of Cretaceous herbivorous dinosaurs
Palaeoenvironmental controls on the distribution of Cretaceous herbivorous dinosaurs
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DOI：
10.1007/s00114-008-0417-5
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发表时间：
2008-11-01
影响因子：
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通讯作者：
Barrett, Paul M.
中科院分区：
文献类型：
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作者：
Butler, Richard J.;Barrett, Paul M.
以前确定恐龙古环境偏好的尝试通常是基于有限地理区域的数据进行定性评估。在这里，我们使用白垩纪食草恐龙的全球数据库来确定进化枝与广泛的古环境类别（“陆地”、“沿海”、“海洋”）之间的显着关联。结节龙科甲龙和鸭嘴龙与海洋沉积物呈显着正相关，而边缘头龙类（角托龙类、厚头龙类）、蜥臀类（草食兽脚亚目、蜥脚类）和甲龙类甲龙与陆地沉积物呈显着正相关。这些结果为以下假设提供了定量支持：一些分支（结节龙科、鸭嘴龙科）在沿海和/或河流环境中更为丰富，而其他分支（例如边缘头龙科、甲龙科）优先居住在更远端的环境中。
Previous attempts to determine palaeoenvironmental preferences in dinosaurs have generally been qualitative assessments based upon data from restricted geographical areas. Here, we use a global database of Cretaceous herbivorous dinosaurs to identify significant associations between clades and broad palaeoenvironmental categories ('terrestrial', 'coastal', 'marine'). Nodosaurid ankylosaurs and hadrosaurids show significant positive associations with marine sediments, while marginocephalians (Ceratopsia, Pachycephalosauria), saurischians (herbivorous theropods, Sauropoda) and ankylosaurid ankylosaurs are significantly positively associated with terrestrial sediments. These results provide quantitative support for the hypothesis that some clades (Nodosauridae, Hadrosauridae) were more abundant in coastal and/or fluvial environments, while others (e.g. Marginocephalia, Ankylosauridae) preferentially inhabited more distal environments.