Erinaceidae

Erinaceidae (from Latin erinaceus, "hedgehog") is a family in the order Eulipotyphla, consisting of the hedgehogs and moonrats. Until recently, it was assigned to the order Erinaceomorpha, which has been subsumed with the paraphyletic Soricomorpha into Eulipotyphla. Eulipotyphla has been shown to be monophyletic; Soricomorpha is paraphyletic because both Soricidae and Talpidae share a more recent common ancestor with Erinaceidae than with solenodons.

species of mammals

Tetracus is an extinct genus of gymnures. Species are from the Oligocene of Belgium and France. Fossils can also be found in the Bouldnor Formation in the Hampshire Basin of southern England.

Proterix is an extinct genus of erinaceid mammal from the Late Oligocene to the Early Miocene of North America.

Silvacola is an extinct genus of mammals belonging to the family Erinaceidae, which also contains the modern hedgehogs and gymnures. It lived in North America during the Early Eocene, about 50 million years ago. It was just long, roughly the length of an adult thumb. It is the smallest erinaceid ever found and comparable in size to some of today's shrews.