雷龙已是人人皆知的一种巨大的恐龙。在漫画家的笔下,它是一个又大又迟钝的家伙,颀长的脖子上顶着一个扁扁的小脑袋。就是这个小小的脑袋,使古生物学家争论了将近一个世纪。今天已给它换了头和更名,恢复了庐山真面目。 1979年10月15日,美国匹兹堡卡内基自然史博物馆取下了40多年来装在雪龙骨架上的那个扁平的脑袋,换上了一个新头。这一换头案的承办者,是康涅狄格州韦斯利大学的麦金托什和青年古生物学家伯曼。雪龙为何要换头呢? 1879年7月,马什的两名助手 Brontosaurus is a huge dinosaur known to all. In the cartoonist’s hand, it was a big, dull guy with a flat, flat head on his long neck. It is this little head that has given palaeontologists an argument for nearly a century. Today it has been given its name and changed its name to restore the true colors. On October 15, 1979, the Carnegie Museum of Natural History in Pittsburgh, USA, took a new head off the flat head that had been attached to a sherbone frame for more than 40 years. The replacement case was sponsored by Mackintosh and the young paleontologist Berman at Wesleyan University in Connecticut. Why did Xuelong change head? July 1879, Marsh two assistants