Phylogenetic Systematics of North American Fossil Caninae

狗科（犬科）的现存成员包括一群不同的食肉动物（狐狸、豺狼、狼、猎狗和家犬），它们属于一个紧密结合的群体，犬科亚科。狗科包括另外两个亚科（Hesperocyoninae和Borophahinae），这两个亚科都已经灭绝了。美国自然历史博物馆的Tedford和Wang将对北美犬科化石的系统发育关系和生物地层学进行全面的研究，作为他们从始新世晚期（大约4000万年前）到现在犬科进化的长期、高分辨率研究的最后一章。他们将从化石和现存的犬科动物中获取形态学数据，并利用最近可用的分子系统发育学来描述新的分类群，并记录犬科动物的多样性、生物年代学和动物地理学。这项研究的材料将来自几个哺乳动物化石收藏，包括美国博物馆的Childs Frick收藏。该项目彻底描绘了北美犬科的历史，并允许分析和记录它们往返其他大陆的复杂运动。该项目还将建立一个数据库，用于调查许多主题，包括地质演替、功能形态以及对短期和长期环境变化的反应。

9707555 Tedford The living members of the dog family (Canidae) consist of a diverse group of predators (foxes, jackals, wolves, hunting dogs, and domestic dogs) that belong to a closely knit group, the subfamily Caninae. The dog family includes two other subfamilies (Hesperocyoninae and Borophahinae), both of which are extinct. Tedford and Wang of the American Museum of Natural History will undertake a comprehensive study of the phylogenetic relationships and biostratigraphy of North American fossil canines as the final chapter of their long-term, high-resolution study of the evolution of the family Canidae from the late Eocene (roughly 40 million years ago) until present. They will acquire morphological data from both fossil and extant canines and will utilize recently-available molecular phylogenies to describe new taxa and to document canine diversity, biochronology, and zoogeography. The material for the study will come from several collections of fossil mammals, including the comprehensive Childs Frick Collection at the American Museum. The project thoroughly delineates the history of Caninae in North America and permits analysis and documentation of their complex movements to and from other continents. The project also will engender a database that will allow investigation of a number of topics including geological succession, functional morphology, and response to short and long-term environmental change.