单词 monoprionidian 释义 monoprionidian, a. Palont.|mnprandn|[f. Gr. - mono- + saw.]Having serrations on one side of the stem only: said of graptolites. Also monoprionid a.1870Nicholson Man. Zool. 95 Besides the simple forms of Graptolites with a row of...