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识别类动物的追踪者提供了对中期中中纪陆地入侵的关键见解

Robert S H Smyth¹, Brent H Breithaupt², Richard J Butler³

¹Centre for Palaeobiology & Biosphere Evolution, School of Geography, Geology, and the Environment, University of Leicester, Bennett Building, University Rd, Leicester LE1 7RH, UK.

Current biology : CB

|May 2, 2025

概括

化石痕迹揭示了类动物 (飞行爬行动物) 制造者的身份,扩大了它们已知的分布,并证实了它们在中生代期间的陆地生态重要性.

科学领域:

古生物学的古生物学
脊椎动物的进化脊椎动物的进化
石化学 (研究化石痕迹)

背景情况:

化石痕迹为人们提供了对已灭绝的动物的洞察力,但将痕迹与特定物种联系起来仍然具有挑战性.
恐龙的踪迹丰富,但往往没有明确的标识他们的轨迹制造者,限制生态和进化研究.
这项研究解决了识别龙追踪者的挑战,以释放痕迹化石的潜力.

研究的目的:

通过使用定量分析和踏板解剖学,直接将特定的龙轨道形态类型与独特的类甲状腺细胞群联系起来.
扩大已知的生物地理分布的ctenochasmatoids,dsungaripterids,和neoazhdarchians. 为了扩大已知的生物地理分布的ctenochasmatoids,dsungaripterids,和neoazhdarchians.
测试和扩展宏观进化和生态假设,使用龙痕迹的证据.

主要方法:

化石轨道形态类型的定量分析.
对类动物脚踏体解剖学的诊断特征的检查.
直接比较的轨迹特征与骨解剖学的特定的类动物.

主要成果:

三种不同的恐龙轨迹形态类型可靠地与ctenochasmatoids,dsungaripterids和neoazhdarchians联系在一起.
这种联系扩大了这些龙群的已知地理范围.
罗纪中期之前没有足迹,支持早期龙的树木习惯,而足迹证据显示,从罗纪中期开始,辐射进入陆地.

结论:

恐龙的痕迹为了解恐龙的进化,生物地理和生态提供了关键证据.
衍生出的类龙成功地在整个中生代辐射到不同的陆地环境中.
这项研究强调了龙在陆地生态系统中的进化适应能力和生态意义.

关键词:

在中生代中,中生代是中生代.类动物群 (Pterosauria) 是一个类动物群.生态学生态学是什么进化演化演化演化演化演化演化演化他们的技术.轨道制造商的身份识别

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