Oberservation of compare with the sections of two calcified structrues, iepectoral fin ray and dentary bone from Chinese paddlefish Psephurus gladius were conducted.
Oberservation of compare with the sections of two calcified structrues, iepectoral fin ray and dentary bone from Chinese paddlefish Psephurus gladius were conducted.
以齿骨和胸鳍条为年龄鉴定材料，通过其骨磨片比较研究，结果显示用胸鳍条鉴定白鲟的年龄较为可靠。