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硬骨鱼类是有颌脊椎动物的主干,分为肉鳍鱼类和辐鳍鱼类两大支系。肉鳍鱼类演化出了后来的四足动物(两栖类、爬行类、鸟类和哺乳类),而留在水中的肉鳍鱼类如今只剩下为数不多的肺鱼和空棘鱼。辐鳍鱼类依旧生活在水中,我们常见的鱼(青、草、鲢、鳙等)绝大部分都属于这一类群,现有三万余种。因此,有颌类的早期分化以及硬骨鱼类的起源与早期分化在脊椎动物演化史上占有非常重要的位置。然而,直到上世纪末,早期硬骨鱼类的化石依旧十分稀少,且多为零散化石。由于过渡化石的缺失,肉鳍鱼类与辐鳍鱼类之间,以及硬
Bony fish is the backbone of the jaw vertebrates, divided into two major branches of fins and fin fin fish. Fins and fishes evolved subsequent quadrupeds (amphibians, reptiles, birds and mammals), while the remaining fins in the water nowadays have only a few lungfish and caviar left. Radiator fish still living in the water, most of our common fish (blue, grass, silver carp, 鳙, etc.) belong to this group, the existing more than 30,000 species. Therefore, the early differentiation of jawed species and the origin and early differentiation of teleosts play a very important role in the evolution of vertebrates. However, until the end of the last century, fossils of early bony fish remained very scarce, and mostly fragmentary fossils. Due to the absence of transitional fossils, between fins and finfish, as well as hard