摘要
从宏观和微观两方面论证了中华龙鸟的皮肤衍生物不是什么“毛发”，而是一种以前人们没能认识的原始羽毛。详细介绍了原始羽毛的基本概念，阐述了原始羽毛与现代羽毛在形态结构方面的相似性和差异性，探讨了原始羽毛在羽毛演化研究中的科学意义。
The concept of protofeathers was first proposed by Ji Qiang and Ji Shuan in 1996, and the term“protofeathers” was assigned to some special hairlike structures of dermal derivatives from Sinosauropteryx, Protarchaeopteryx and other protobirds. According to our current study, 4 types of protofeathers can be recognized:natal downtype, plumuletype, semiplumetype and plumatype. All types of protofeathers are characterized mainly by the absence of barbules and rachis(or the occurrence of weakly developed rachis).It is possible that modern feathers have involved from protofeathers by the development of barbules and rachis. In this paper is given a model of feathers evolution, in which plumules gave rise to semiplumes by the development of barbules without barbicels and weakly developed rachis, and then semiplumes gave rise to contour feathers by the development of strongly developed rachis and barbules with barbicels and flange, finally contour feathers evolved further into some special types, such as hairlike feathers, bristles(or bristlelike feathers), tail feathers and flight feathers.
出处
《江苏地质》
1998年第2期65-72,T003,共9页
Jiangsu Geology
基金
地质矿产部"九五"基础理论研究重点项目
国家杰出青年科学家基金
关键词
中华龙鸟
原始祖鸟
原始羽毛
现代羽毛
羽毛演化
Sinosauropteryx Protarchaeopteryx Protofeathers Modern feathers Feathers evolution
