Source : Webster's Revised Unabridged Dictionary (1913)

Lepidodendrid \Lep`i*do*den"drid\
   (l[e^]p`[i^]*d[-o]*d[e^]n"dr[i^]d), n. (Paleon.)
   One of an extinct family of trees allied to the modern club
   mosses, and including Lepidodendron and its allies.