Saurophthirus
Saurophthirus
Extinct genus of fleas
Saurophthirus is an extinct genus of giant stem-group flea, and the only member of the family Saurophthiridae. The type species, S. longipes is found in early Cretaceous strata of Baissa, Siberia. Two other species S. exquisitus and S. laevigatus are from the Lower Cretaceous Yixian Formation of China.[1][2]