Anatomy and Systematics of Early (non-Neornithes) Birds

9873705恰普鸟类的早期历史是现存的陆地脊椎动物中最多样化的一类，长期以来一直是一个严格的科学审查问题。直到最近，科学家们还不得不依靠仅有的几个中生代已知物种的稀少化石证据，才能得出关于早期鸟类历史关系的结论。然而，最近随着许多新的中生代鸟类的发现，情况发生了戏剧性的变化。现在有大量新的证据可供分析和解释。该项目将包括对所有可用的早起鸟类进行全面的系谱研究。它将包括对物种的解剖学研究，包括一些尚未描述的物种，并建立在对早期鸟类的现有系谱分析的基础上。这项工作将为所有种类的早起鸟类(迄今已知的大约40种)产生新的关系假说。

9873705 Chiappe The early history of birds, the most diverse group of extant land vertebrates, has long been a matter of intense scientific scrutiny. Until recently, scientists have had to rely on the scant fossil evidence available from just a few known species of the Mesozoic Era to draw conclusions about the historical relationships of early birds. Lately, however, the situation has changed dramatically with the discovery of many new Mesozoic bird species. A wealth of new evidence is now available for analysis and interpretation. This project will include a comprehensive genealogical study of all available species of early birds. It will include anatomical studies of species including some as yet undescribed, and build upon existing genealogical analyses of early birds. The work will yield new hypotheses of relationships for all species of early birds (approximately 40 so far known).