Ammonite

(noun.) one of the coiled chambered fossil shells of extinct mollusks.

编辑:威拉

• In some cases, however, the extermination of whole groups, as of ammonites, towards the close of the secondary period, has been wonderfully sudden. 查尔斯·达尔文. 物种起源.
• Ammonites and Moabites became adherents. 赫伯特·乔治·威尔斯. 世界史纲.

编辑:桑德拉