Morphological and molecular phylogenies of animal parasites have often shown parallel cladogenesis, supporting hypotheses of coevolution. Few studies of the phylogenetic history for plants and their ...
Figure 1. Fossilized nits of chewing lice, tightly affixed to feathers of an enantiornithine bird, entombed in mid-Cretaceous amber from northern Myanmar. (a) Isolated barbs and regularly arranged ...