白垩纪
古生物学
领域(数学)
建议(编程)
考古
地质学
地理
计算机科学
数学
程序设计语言
纯数学
作者
Raymond McKee Sternberg
摘要
T HE Steveville area of Alberta is worldfamous for its fine dinosaur remains. For many years, however, collectors have wondered at the absence of evidence of birds in these extensive Cretaceous exposures. During the summer of 1936 a field party from the National Museum of Canada, under the direction of C. M. Sternberg, collected, in addition to several other fine specimens, one which is here described as avian. This specimen, which was discovered by the writer, was most generously turned over to him for preparation and study by Mr. Sternberg. To Mr. Sternberg, and to Dr. A. Wetmore who has been most generous with encouragement and advice, the author wishes to express his sincere appreciation.
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