Compluriscutula vetulum (Acari: Ixodida: Ixodidae), a new genus and new species of hard tick from lower Cretaceous Burmese amber

Compluriscutula vetulum, n. gen., n. sp. (Acari: Ixodida: Ixodidae), is described from Lower Cretaceous Burmese amber. Diagnostic characters include a circular body, thirteen festoons, elongate 4-segmented palpi with the fourth segment distinct and subapical, the absence of eyes and an anal groove, and the presence of 34 uneven rows of 2/2 unequal teeth located on the anterior half of the hypostome. The larger teeth are covered with minute denticles. This is the third genus of hard ticks reported from Burmese amber, showing that a high level of tick diversity existed 100 mya.