Bresenhamins

Bresenhamins are a group of small, primitive mammals that lived during the Early Cretaceous period, approximately 125 million years ago. They are named after the Bresenham Formation in Kansas, where their fossils were first discovered. Bresenhamins are characterized by their small size, typically ranging from 10 to 20 centimeters in length, and their simple, rodent-like morphology. They had a single pair of upper incisors, a pair of lower incisors, and a pair of molars, which suggests they were herbivorous. Their teeth were continuously growing, similar to those of modern rodents. Bresenhamins are believed to have been insectivorous or omnivorous, feeding on small insects, plants, and possibly other small animals. They are considered to be one of the earliest known mammals, and their discovery has provided valuable insights into the evolution of early mammals.