Perusasteella

Perusasteella is a genus of small, extinct mammals that lived during the Eocene epoch, approximately 56 to 34 million years ago. The genus is known from fossil remains found in Europe, particularly in the Paris Basin of France. Perusasteella is characterized by its small size, with body lengths estimated to be around 10-15 centimeters, and its primitive dental structure, which includes both incisors and molars.

The genus includes two species: Perusasteella parisiensis and Perusasteella minor. Perusasteella parisiensis is the type species and is known from a single fossil found in the Paris Basin. Perusasteella minor is known from several fossils found in the same region and is distinguished by its slightly smaller size.

Perusasteella is classified within the order Insectivora, which includes modern-day mammals such as shrews, hedgehogs, and moles. The genus is of particular interest to paleontologists because it provides insights into the early evolution of insectivores and the diversification of mammals during the Eocene. Despite its small size and primitive features, Perusasteella is an important contributor to our understanding of the evolutionary history of mammals.