A reconsideration of the paleoecology of hadrosaurian dinosaurs
A reconsideration of the paleoecology of hadrosaurian dinosaurs
复制标题
对鸭嘴龙恐龙古生态学的重新思考
DOI：
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发表时间：
1964
期刊：
影响因子：
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通讯作者：
J. H. Ostrom
中科院分区：
文献类型：
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作者：
J. H. Ostrom
古地理学和古植物学证据表明，晚白垩世鸭嘴恐龙生活在暖温带至亚热带气候的低地沿海平原。优势伴生植物群为低地森林类型。牙齿构造、骨骼结构、相关的植物群，以及在一个例子中保存的胃内容物的性质表明鸭嘴龙是陆生两足动物，适合吃陆地植物的抵抗组织，而不是柔软的水生植物。在缺乏可识别的防御结构的情况下，大而平的尾巴和“蹼状”的手被认为是保护性的适应，使鸭嘴龙能够通过游泳来逃避陆地上的危险。
Paleogeographic and paleobotanical evidence suggest that Late Cretaceous duck-billed dinosaurs lived in lowland coastal plains in warm temperate to subtropical climates. The predominant associated flora was of the lowland forest type. Nature of dental apparatus, skeletal structure, associated flora, and, in one instance, preserved stomach contents indicate that hadrosaurs were terrestrial bipeds adapted to eating the resistant tissues of land plants rather than soft aquatic plants. In the absence of recognizable defensive structures, the large flat tail and "webbed" manus are regarded as protective adaptations that permitted the hadrosaurs to escape terrestrial dangers by swimming.