Newfound fossil species of lamprey were flesh eaters

The modern kin of these dinosaur contemporaries can consume either blood or flesh

An artist's rendition of a Yanliaomyzon ingensdentes.

Yanliaomyzon ingensdentes, shown in this artist’s rendition, is one of two newly discovered species of flesh-eating lamprey found in 160-million-year-old rocks.

Heming Zhang

Found in roughly 160-million-year-old rocks in North China, the Yanliao Biota is a diverse array of beautifully preserved fossils, including dinosaurs, pterosaurs and even early mammals.