Boavus

Boavus is an extinct genus of boa known primarily from Eocene-aged strata of North America. At least three species are known from the Middle Eocene Green River lagerstätte in Wyoming, two species from Eocene strata of Uinta County, and at least one species is known from the middle to late Eocene-aged Sespe Formation of California. Boavus was a small snake measuring between long.

Post-Eocene specimens

Three vertebrae very similar in form, if not identical to those of B. occidentalis were found in early Oligocene-aged strata of South Dakota. Remains of what may be B. affinis are found in Late Miocene strata of Trinity River in Texas.