摘要
After the publication of the paper titled 'Preliminary Report on a Mesozoic Bird From Liaoning,China' in 1992 in this journal, there were succeeding papers entitled 'Confuciusornis sanctus, a new Late Jurassic Sauriurine Bird From China' and 'A Carinate Bird From the Upper Jurassic of Western Liaoning, China' in 1995 and 1996 respectively. These publications aroused strong response at home and abroad. Cathayornis, Confuciusornis and Liaoningornis became important reference material for study of the evolution of early birds. In the last few years, two early bird assemblages were found, i.e. the Early Cretaceous Cathayornis assemblage and the Late Jurassic Confuciusornis assemblages, which represent the biggest and richest Mesozoic bird assemblages of the world. These assemblages contain not
