Sentence:  Hard though it may seem to associate avian elegance with cumbersome and ferocious behemoths this was the story told by the <WSD>cladograms</WSD>, revealed by interpreting the bones of the famous old bird "Archaeopteryx" unfettered by preconceived notions. 
Meaning of the word marked with <WSD> tags:  A branching treelike graphical representation of the phylogenetic relationships between organisms showing which taxa have branched from common ancestors.