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 ...

These external parasites can either be sucking lice or chewing lice, most commonly found on young puppies or geriatric dogs ...

The species, which the team named Mesophthirus engeli, had a body shape similar to modern lice and strong chewing mouthparts. The feathers it was found on were damaged, apparently from chewing, the ...