👉 Gyrinomimus is a genus of extinct mammals from the Late Cretaceous period, also known as the Early Cretaceous period. They were part of the group called "Cretaceous-Paleogene (KP) mammals," which was a significant time frame in the evolution and extinction of various species during this period. Gyrinomimus is characterized by having a short snout, large ears, and a long neck with a curved spine.