crossopterygii
n. 总鳍鱼类;[古生] 总鳍鱼亚纲;总鳍鱼
例句
Crossopterygii; most known only in fossil form.
总鳍目的鱼;大多仅知为化石形式存在。
Bony fishes of the southern hemisphere that breathe by a modified air bladder as well as gills; sometimes classified as an order of crossopterygii.
用气泡或腮呼吸生活于南半球的多骨鱼类;有时被归为总鳍鱼类。